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Oracle Interview Questions: Dual table in Oracle
 
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This video is the 2nd video in the video series Oracle Interview questions.It explains dual table in oracle along with the advantages that it offers. Below tutorial explains how you can generate test data in oracle using oracle table and hierarchical queries. https://www.youtube.com/watch?v=Lf8m9lXNPnc&t=25s
Views: 1749 Tech Coach
The DUAL TABLE in Oracle Database
 
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The DUAL TABLE in Oracle Database
Views: 1365 Abe Samir's Academy
Oracle Sql: Lecture 49: DUAL What is this
 
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DUAL What is this https://www.youtube.com/channel/UCnBpiBIOtRgMsk4G7Ri1jbQ
Views: 1777 Oracle SQL
Oracle Interview question : what is dual table in oracle
 
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Oracle Interview question : what is dual table in oracle Oracle dual table is automatically created as part of installation in SYS schema. Dual table has one column called DUMMY of VARCHAR2(1) datatype. This table is useful for computing a constant expression with select statement List of all the SQL and PLSQL interview questions https://easy-learning-tech.blogspot.com/p/oracle-sql-plsql-interview-questions.html
Views: 156 Siva Academy
DUAL Table In Oracle | Oracle Tutorials for Beginners
 
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DUAL Table In Oracle Oracle Tutorials for Beginners Purpose of Dual Table In Oracle Oracle Tutorials for Beginners Oracle pl/sql Tutorials for Beginners Oracle plsql Tutorials for Beginners Dual Table Dual Table in Oracle What is Dual Table In Oracle What is the Purpose of Dual table in oracle? What is meat by Dual table in Oracle Oracle Tutorials for Beginners Oracle pl/sql Tutorials for Beginners Oracle Tutorials for Beginners Oracle pl/sql Tutorials for Beginners Oracle Tutorials for Beginners Oracle pl/sql Tutorials for Beginners Oracle Tutorials for Beginners Oracle pl/sql Tutorials for Beginners
Views: 531 Oracle PL/SQL World
Oracle SQL Tutorial 9 - Intro to Queries
 
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This video is for beginners who have never worked with SQL Developer, and we are going to teach how to begin writing queries. So the queries we are going to start with are queries when we give the database an expression and it will return back some kind of value. The most common keyword you are going to need to know for Oracle is SELECT. SELECT is the command we use to get data from the database. Even though we have not really put any data in our database, we can still use the SELECT statement to get data. That's because the database is capable of doing more than just creating tables and retrieving data from tables. So our first goal is to essentially write a Hello World, which just displays the text hello world to us. A good place to start is with: SELECT 'Hello World' This would actually work for many database management systems, but when you run it you will get an error. This actually doesn't work with Oracle, it will tell us we always need the FROM keyword. To get around this, there is a magical table called DUAL. We can put anything we want to SELECT and then say FROM DUAL and it will work. SELECT 'Hello World' FROM DUAL We can also do math: SELECT 1+1 FROM DUAL And we can run even run functions: SELECT SYSTIMESTAMP FROM DUAL To put all of this together, you can grab all of this data at the same time using commas to separate different columns from our generated table: SELECT 'Hello World', 1+1, SYSTIMESTAMP FROM DUAL Support me on Patreon: http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 23559 Caleb Curry
Oracle  dual table importance
 
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This video explains about dual table and its importance.Hands on with few queries
Views: 65 Kishore Desetti
SQL, Oracle, Dual table, 3e62
 
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Understanding Dual table. Most SQL videos are available on www.my-uni.net also. Feel free to visit
Views: 2706 hammadshams
Урок 13. SQL. Таблица DUAL.
 
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В SQL Oracle диалекта есть специальная таблица DUAL Эта таблица создана искусственно , она содержит одно поле и одну строку тестовая среда https://apex.oracle.com/pls/apex/ схема: SQLADV польз: student1 пароль: student1 будут работать (student2/ student2, student3/ student3 .... student11/ student11) меню SQL Workshop , SQL Command или используйте http://sqlfiddle.com/ скрипт бд для загрузки в sqlfiddle http://sqladv.ru/dev/sql.txt урок и задания http://sqladv.ru/dev/sqlbasic/l13.txt
Oracle Part 12 Outer Join and Dual
 
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Outer join, substr, floor, ceil, round, dual
Views: 1040 Free OpenMentor
SQL, Oracle, Understanding SELECT statement, 1e63
 
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The video will describe Select statement.
Views: 1350 hammadshams
Oracle Database11g tutorials 11: SQL case manipulation function in Oracle Database
 
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Part 2 SQL functions- character function -case manipulation functions Previous Video Link :: http://youtu.be/5rx8Q4x4-qI Tool used in this tutorial is command prompt. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ------------------------------------------------------------------------------------- As discuss in last video we have 3 case manipulation functions. In case you miss the SQL functions intro video you can find the link in the description below. First let's see what these functions are. Upper (): This function takes a parameter converts it into uppercase and returns the new string. Initcap (): this function also takes parameter and converts the initial letter of or parameter into uppercase and returns the new string. Lower (): This function takes a parameter converts it into lowercase and returns the new string. Ok let's do some practical For this practical we will be using 2 tables First is dual table Which is a dummy table provided by oracle? And I have created another table again by the name of example. This will be our second table. Let's start with SQL function upper ( ); SELECT upper('hello world') FROM dual; As you can see I have used "hello world" completely in lowercase as parameter to SQL upper function. Execute it. Here, our result has given us a completely new hello world string which is in uppercase. Similarly you can also use SQL upper function to perform other DML Let's try This time we will work on our second table EXAMPLE; insert into example values (upper('manish')); first parentheses for values and second for SQL function upper. Let's check the result. As you can see here inserted value is in upper case. Lets compare it with simple insert query Insert into example values ('manish'); Execute it, i think now it's clear that when we perform simple insert DML the inserted value will be the same you provide. Similarly let's try SQL function initcap(); SELECT initcap('hello world') FROM dual; As you see here in result the initial letters of string hello world are in uppercase. Let's do the insert query insert into example values (initcap('hello world')); initial letters of string also are in uppercase. Let's try SQL function lower(); This time we have to write our hello world in all caps. SELECT lower('HELLO WORLD') FROM dual; Execute String totally in lower case. Similarly you can user SQL function lower in other DML like insert and all.
Views: 83886 Manish Sharma
Random number &  Random String in Oracle/ عربي
 
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oracle sql Random number & Random String in Oracle select dbms_random.random from dual; select dbms_random.value from dual; select dbms_random.value(1,10) from dual; select round(dbms_random.value(1,10) ) from dual; /* 'u', 'U' - returning string in uppercase alpha characters 'l', 'L' - returning string in lowercase alpha characters 'a', 'A' - returning string in mixed case alpha characters 'x', 'X' - returning string in uppercase alpha-numeric characters 'p', 'P' - returning string in any printable characters. */ select dbms_random.STRING('L',15) from dual; select dbms_random.STRING('U',10) from dual; select dbms_random.STRING('A',10) from dual; select dbms_random.STRING('X',20) from dual; select dbms_random.STRING('P',20) from dual;
Views: 691 khaled alkhudari
Oracle Database11g tutorials 13 || SQL substr function / SQL substring function
 
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link of SQL substr blog : http://www.rebellionrider.com/SQL-substr-function.htm SQL substr function SQL Substr function will return a sub string of a specified length from the source string beginning at a given position. Tool used in this tutorial is command prompt. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ---------------------------------------------------------------------------- As the name suggests SQL Substr function will return substring from a given source string. Let's see the Syntax Substr (source_string, start_pos, Substr_length) As we can see SQL substr function takes 3 parameters. First one is Source string from which you want to extract the segment. Second parameter is Starting position for sub string from the Source string. And the third parameter is Substr_length which is the length for the substring. First two parameters are mandatory to specify while third one is optional. So we can say. SQL Substr function will return a sub string of a specified length from the source string beginning at a given position. First parameter source string can be of any data type CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, or NCLOB whereas both start_pos, Substr_length parameters must be number data type. The returning result of SQL Substr function is of same data type of source string. Let's see an example of SQL Substr function. SELECT substr('www.RebellionRider.com',5,14) FROM dual; Here in this query url of my website www.RebellionRider.com is our source string with the total length of 22 characters, Now, I want to extract the name of my website that is, RebellionRider. So if you count the total length of the name of the website, it is 14. That's why I have specified 14 as my third parameter of SQL Substr function which is substr_length. Also the name of the website RebellionRider is starting from 5th position therefore I have specified 5 at second parameter of SQL substr function which is strt_pos or starting position. Execute it. Here is our result RebellionRider When starting position is larger than the length of source string. In this case SQL Substr function will return NULL as a result. Let's do an example. SELECT substr('www.RebellionRider.com',23,14) FROM dual; As you can see here I have specified 23 at starting position and the total length of our source string is 22 characters Let's execute And the result is Null. Second scenario When the Substr_length is greater than source string In this case the segment return is the substring from starting position to the end of the string. For example SELECT substr('www.RebellionRider.com',5,23) FROM dual; Our starting position is at 5 means at the first R of RebellionRider and length of substring is set to 23 which is greater than the length of source string that is 22. Execute. As you can see we get a substring from first R of RebellionRider till the end of the source String. Third scenario When you supply numeric or arithmetic expression or a DATE instead of character as Source string to SQL Substr function In this scenario If you have supplied a numeric string instead of character as source string, the oracle engine casts them as a character when they occur as parameter to SQL Substr function. And if you have supplied Arithmetic expression or a DATE then The Oracle engine first solves or evaluates the Arithmetic expression or the DATE Then casts them as a character. Means if you have arithmetic expression in your source string then oracle will first solve it and then change or say cast the value of its result into character. Let's see some example. SELECT substr(50000-7,2,4) FROM dual; Oracle first evaluates the arithmetic expression that is 50000-7 equals to 49993. And then oracle engine casts this result 49993 into a character string. Means 49993 will be a 5 characters string. Starting position of substring is 2, that means from the first 9 of 49993 We specified the length of substring is 4 so we must get 9993 as our result. Let's check execute
Views: 77950 Manish Sharma
106/125 Oracle PLSQL: PLSQL Compiler / dbms_warning
 
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select name,value from v$parameter where name='plsql_warnings' --1-- --Modify the current session's warning settings /* dbms_warning.add_warning_setting_cat( warning_category IN VARCHAR2, warning_value IN VARCHAR2, scope IN VARCHAR2) */ --now we can modify the setting begin dbms_warning.add_warning_setting_cat('SEVERE', 'ENABLE', 'SESSION'); end; --we can check the new value by select name,value from v$parameter where name='plsql_warnings' --or SELECT dbms_warning.get_warning_setting_string FROM dual; -------------------- --2 /* dbms_warning.add_warning_setting_num( warning_number IN PLS_INTEGER, warning_value IN VARCHAR2, scope IN VARCHAR2); */ EXEC dbms_warning.add_warning_setting_num(6002, 'DISABLE', 'SESSION'); SELECT dbms_warning.get_warning_setting_num(6002) FROM dual; EXEC dbms_warning.add_warning_setting_num(6002, 'ENABLE', 'SESSION'); SELECT dbms_warning.get_warning_setting_num(6002) FROM dual; ----------------------------- --3 /* dbms_warning.set_warning_setting_string( value IN VARCHAR2, scope IN VARCHAR2); */ exec dbms_warning.set_warning_setting_string('ENABLE:ALL', 'SESSION'); SELECT dbms_warning.get_warning_setting_string FROM dual; -------------------- --4 /* dbms_warning.get_category(warning_number IN PLS_INTEGER) RETURN VARCHAR2 */ -- severe SELECT dbms_warning.get_category(5000) FROM dual; -- informational SELECT dbms_warning.get_category(6002) FROM dual; -- performance SELECT dbms_warning.get_category(7203) FROM dual; ------------------------------------------ --5 /* dbms_warning.get_warning_setting_cat(warning_category IN VARCHAR2) RETURN VARCHAR2 */ SELECT dbms_warning.get_warning_setting_cat('SEVERE') FROM dual; SELECT dbms_warning.get_warning_setting_cat('INFORMATIONAL') FROM dual; SELECT dbms_warning.get_warning_setting_cat('PERFORMANCE') FROM dual; ------------ --6 --dbms_warning.get_warning_setting_num(warning_number IN PLS_INTEGER) --RETURN VARCHAR2 SELECT dbms_warning.get_warning_setting_num(5000) FROM dual; SELECT dbms_warning.get_warning_setting_num(6002) FROM dual; SELECT dbms_warning.get_warning_setting_num(7203) FROM dual;
Views: 284 khaled alkhudari
Oracle Core,  Лекция 3-2
 
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Ссылка на файл с презентацией: https://docs.google.com/presentation/d/1PzGVjjsR2lSlr5EXFzmbIpVN4RMGBkjwU_De6FQyxVI/edit?usp=sharing (презентация может быть с анимацией) Ссылка на краткий конспект лекции: https://docs.google.com/document/d/1x7-BCc_2Z83vSGjcFZiWGGdtVoRm1AJLRnxp-lXtchU/edit?usp=sharing 1. Таблица DUAL 2. Конструкция WITH. Рекурсивные запросы с конструкцией WITH 3. Иерархические запросы (self joins): START WITH, CONNECT BY, PRIOR, NOCYCLE, ORDER SIBLINGS BY, LEVEL, CONNECT_BY_ISCYCLE, CONNECT_BY_ISLEAF, SYS_CONNECT_BY_PATH, CONNECT_BY_ROOT 4. Псевдостолбцы (pseudocomlumns). 4.1 ORA_ROWSCN (SCN_TO_TIMESTAMP, TIMESTAMP_TO_SCN) 4.2 ROWID (DBMS_ROWID) 4.3 ROWNUM 5. Конструкция SAMPLE 6. Конструкция PIVOT 7. Конструкция UNPIVOT 8. Оператор INSERT INTO SINGLE TABLE 9. Оператор INSERT INTO MULTITABLE: INSERT ALL, INSERT FIRST 10. Оператор UPDATE 11. Оператор DELETE 12. Оператор MERGE 13. Обновляемая VIEW (KEY-PRESERVED TABLE) 14. SQL FUNCTIONS: SYSDATE, EXTRACT, ADD_MONTH, MONTH_BETWEEN, UPPER/LOWER, LENGTH, SUBSTR, INSTR, REPLACE, LTRIM/RTRIM/TRIM, LPAD/RPAD, TO_CHAR, TO_NUMBER, TO_DATE, POWER, ABS, ROUND, CEIL/FLOOR, USER, TRUNC, GREATEST/LEAST Oracle Database, БД Oracle, вебинар Oracle, презентация Oracle, урок Oracle, лекция Oracle, обучение Oracle
12 Select Parte 3 - Tabla dual
 
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En este vídeo se explica la funcionalidad de la tabla Dual de Oracle
SQL tutorial 61: SEQUENCE in Oracle Database By Manish Sharma RebellionRider
 
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This tutorial is all about Sequence In Oracle Database. In this SQL Tutorial you will learn How to create a sequence How to populate a Primary key column (auto increment in Oracle) using Sequence How to drop a sequence ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/sql-sequence-in-oracle-database-rebellionrider-manish-sharma Previous Tutorial ► How To Insert Data into Table using SQL Developer http://youtu.be/YYQCSV6MzTk ► INSERT INTO Command http://youtu.be/uQXgqFtxI_k ► How to copy /Insert data into a table from another table http://youtu.be/m3Ep8tAMqok ------------------------------------------------------------------------- ►►►Help Me In Getting A Job◄◄◄ ►Help Me In Getting A Good Job By Connecting With Me on My LinkedIn and Endorsing My Skills. All My Contact Info is Down Below. You Can Also Refer Me To Your Company Thanks ------------------------------------------------------------------------- Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at for E-mail address please check About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 40676 Manish Sharma
Oracle SQL Developer Tutorial For Beginners   87   Dual
 
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Oracle SQL Developer Tutorial For Beginners Series. This course introduces Oracle SQL Development for its subscribers. Currently this is based on Oracle 12c. The test environment is in Windows 10.
Views: 510 Sam Dhanasekaran
Oracle SQL Number Functions
 
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In this video, overview of Oracle predefined Number functions is given. SQL Used in the video given below. ABS - Absolute function returns absolute value. i.e it returns positive value. select abs(-18.9), abs(8.9), abs(0) from dual; FLOOR and CEIL For 10.2, floor returns value 10, ceil returns value 11 select floor(10.8), ceil(10.2) from dual; ROUND select round(10.8), round(10.49) from dual; SELECT round(10.483,1) from dual; select round(3548,-1),round(3548,-2),round(3548,-3) from dual; select round(3568,-1),round(3568,-2),round(3268,-3) from dual; MOD - returns me the remainder.. let's say 11 divided by 3, here the remainder is 2 select mod(12,3) from dual; select sign (-10), sign (0), sign(10) from dual; select power (6,2), sqrt(3) from dual;
Views: 5 Ganesh Anbarasu
Função Oracle MONTHS BETWEEN
 
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Acesse o desafio: http://novidades.aprendaplsql.com/15-dias-de-funcoes-oracle A função de MONTHS_BETWEEN retorna a diferença de meses entre duas datas. SELECT months_between(TO_DATE('28/12/2017', 'DD/MM/YY'), TO_DATE('03/08/2017', 'DD/MM/YY')) AS MONTHS_BETWEEN FROM dual; SELECT trunc(months_between(TO_DATE('28/12/2017', 'DD/MM/YY'), TO_DATE('03/08/2017', 'DD/MM/YY'))) AS MONTHS_BETWEEN FROM dual; SELECT round(months_between(TO_DATE('28/12/2017', 'DD/MM/YY'), TO_DATE('03/08/2017', 'DD/MM/YY'))) AS MONTHS_BETWEEN FROM dual; https://www.youtube.com/watch?v=PjaBYIwXf8c&list=PLMaqczuL07LkjrX6Rvx6TdNM-1nbUKG8p
Views: 601 Aprenda PL/SQL
Oracle Part 17 Select in Stored Procedure, Exceptions
 
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Select into statement in SP, exception handler in
Views: 6665 Free OpenMentor
Hierarchical Queries in Oracle/ عربي
 
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start with & connect by prior Hierarchical Queries in Oracle ملاحظه : اشارة الاكبر غير مسموحة في الوصف --1--- select employee_id, first_name,last_name,manager_id from employees; --2--- select employee_id, first_name,last_name,manager_id from employees where manager_id=100; --3--- select employee_id, first_name,last_name,manager_id from employees where manager_id=101; --4--- select employee_id, first_name,last_name,manager_id from employees where manager_id=108; --5--- select employee_id, first_name,last_name,manager_id from employees where manager_id in (109,110,111,112,113) --6--- select employee_id, first_name,last_name,manager_id from employees start with employee_id=100 connect by prior employee_id=manager_id --top down --7--- select employee_id, first_name,last_name,manager_id from employees start with employee_id=113 connect by prior manager_id =employee_id --buttom up --8--- --let us take this and try to do nice thing --Neena Kochhar work for Steven King select employee_id, first_name,last_name,manager_id from employees start with employee_id=100 connect by prior employee_id=manager_id --top down --9--- select first_name||' '||last_name ||' work for '|| (select first_name||' '||last_name from employees e where e.employee_id=a.manager_id ) from employees a start with employee_id=100 connect by prior employee_id=manager_id --top down --10--- select first_name||' '||last_name ||' work for '|| prior first_name||' '||prior last_name from employees start with employee_id=100 connect by prior employee_id=manager_id --top down --11--- select level,employee_id, first_name,last_name,manager_id from employees start with employee_id=100 connect by prior employee_id=manager_id --top down --1 mean root --2 mean child of root --3 mean child of child , and so on --12--- select level,employee_id, first_name,last_name,manager_id from employees where level=2 start with employee_id=100 connect by prior employee_id=manager_id --13--- select lpad ('khaled',10, 0) from dual --14--- select level, case when level=1 then first_name||' '||last_name when level Greater sign 1 then lpad (first_name||' '||last_name,length(first_name||' '||last_name)+level-1, '-') end tree from employees start with employee_id=100 connect by prior employee_id=manager_id --top down ---------------------- --15--- select employee_id, first_name,last_name,manager_id from employees start with employee_id=100 connect by prior employee_id=manager_id --top down --16--- select employee_id, first_name,last_name,manager_id from employees start with employee_id=100 connect by manager_id= prior employee_id --top down
Views: 2236 khaled alkhudari
04 Oracle Database Tutorial  - SELECT Operators in Oracle
 
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This video tutorial on Oracle provides detailed information on Arithmetic Operators, Concatenation Operator, Character Functions, Conversion Functions, DateTime Functions, Numeric Functions, Truncating Numeric Data,DUAL Table, DESCRIBE TABLE. You can visit Oracle Database related videos here : https://www.youtube.com/watch?v=cDqlT7O8H0Q&list=PLRt-r4QiDOMfMmVU-8145pLcBxIdvAt8f&index=1 Website: http://guru4technoworld.wix.com/technoguru Facebook : https://www.facebook.com/a2zoftech/ Blog: http://dronatechnoworld.blogspot.com
Views: 34 Sandip M
Oracle SQL Developer Tutorial For Beginners   88   Dual Examples
 
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Oracle SQL Developer Tutorial For Beginners Series. This course introduces Oracle SQL Development for its subscribers. Currently this is based on Oracle 12c. The test environment is in Windows 10.
Views: 628 Sam Dhanasekaran
Introduction and Installation of Oracle 11g | Tamil Tutorial
 
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An Oracle database is a collection of data treated as a unit. The purpose of a database is to store and retrieve related information. A database server is the key to solving the problems of information management. In general, a server reliably manages a large amount of data in a multiuser environment so that many users can concurrently access the same data. All this is accomplished while delivering high performance. A database server also prevents unauthorized access and provides efficient solutions for failure recovery. All The Content Are Educational Purpose Only. Don't Misuse This Tutorial . Hacking is illegal. Facebook : https://m.facebook.com/SmartphoneHackers/ YouTube : https://www.youtube.com/channel/UC0crYp_fKDI73dA3ER2sp3g
Views: 220 Smartphone Hackers
Oracle DBA Justin - How to re-create the special table dual in an Oracle database # 1 of 2
 
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How to re-create the special table dual in an Oracle database
Views: 2853 jbleistein11
Flashback Query Oracle Database||  Recovery Deleted Row
 
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MD.Rahim Uddin Shohag Founder - Oracle Bangla https://www.oraclebangla.com/ fb :: https://www.facebook.com/oracle.shohag email: [email protected] Recovery Deleted Row in Oracle using Flashback Query ============================================ i'm show you how to recovery Deleted row in oracle database following Step :: ================== /* FLASHBACK QUERY NO NEED DBA */ CREATE TABLE DEMO_CUSTOMER ( CUST_ID NUMBER CONSTRAINT DEMO_CUSPRIMARY PRIMARY KEY, CUST_NAME VARCHAR2(100 BYTE), CUST_ADDRESS VARCHAR2(200 BYTE), CUST_PHONE VARCHAR2(15 BYTE), CUST_WEBSITE VARCHAR2(100 BYTE), CREATE_DATE DATE DEFAULT SYSDATE ); SELECT SYSDATE FROM DUAL; --------------- INSERT RECORD --------- INSERT INTO DEMO_CUSTOMER VALUES(100,'SHOHAG','DHAKA','121212','www.oraclebangla.com',SYSDATE); INSERT INTO DEMO_CUSTOMER VALUES(101,'RAHIM','Feni','121212','www.google.com',SYSDATE); INSERT INTO DEMO_CUSTOMER VALUES(103,'Rubel','karwan bazar','121343','www.obn.com',SYSDATE); INSERT INTO DEMO_CUSTOMER VALUES(104,'Karim','DHAKA','1212432','www.OCA.com',SYSDATE); COMMIT; SELECT * FROM DEMO_CUSTOMER; SELECT COUNT(*) FROM DEMO_CUSTOMER SELECT SYSDATE FROM DUAL; ---- AFTER FEW MINUTE -------- DELETE FROM DEMO_CUSTOMER WHERE CUST_ID = 100; DELETE FROM DEMO_CUSTOMER WHERE CUST_ID = 101; DELETE FROM DEMO_CUSTOMER WHERE CUST_ID = 103; COMMIT; SELECT * FROM DEMO_CUSTOMER; SELECT COUNT(*) FROM DEMO_CUSTOMER -----Way No 1 AFTER 1 MINIUTE ---------- SELECT * FROM DEMO_CUSTOMER AS OF TIMESTAMP (SYSTIMESTAMP -INTERVAL '1' MINUTE) ; SELECT COUNT(*) FROM DEMO_CUSTOMER; SELECT * FROM DEMO_CUSTOMER; /* IF SPECIFIC TIME FINDE DATA HISTORY */ ---- why no 2 SELECT * FROM DEMO_CUSTOMER AS OF TIMESTAMP TO_TIMESTAMP('21-02-2018 04:24:40 PM','DD-MM-RRRR HH:MI:SS AM'); ---============== recovery data ============= SELECT * FROM DEMO_CUSTOMER; --------------------------- SPECIFIC DATA RECOVERY -------------------------- SELECT * FROM DEMO_CUSTOMER AS OF TIMESTAMP (SYSTIMESTAMP -INTERVAL '2' MINUTE); INSERT INTO DEMO_CUSTOMER (SELECT * FROM DEMO_CUSTOMER AS OF TIMESTAMP (SYSTIMESTAMP -INTERVAL '2' MINUTE) WHERE CUST_ID = 101); COMMIT; SELECT * FROM DEMO_CUSTOMER; --- RECOVERY SINGEL RECORD FLASHBACK 2ND WAY SELECT * FROM DEMO_CUSTOMER AS OF TIMESTAMP TO_TIMESTAMP('21-02-2018 04:24:40 PM','DD-MM-RRRR HH:MI:SS AM'); INSERT INTO DEMO_CUSTOMER ( SELECT * FROM DEMO_CUSTOMER AS OF TIMESTAMP TO_TIMESTAMP('21-02-2018 04:24:40 PM','DD-MM-RRRR HH:MI:SS AM') WHERE CUST_ID = 100 ); COMMIT; SELECT * FROM DEMO_CUSTOMER; ---IF YOU RECOVERY DATA ALL DELETE RECORD JUST SIMPLE TECHNIC ----- SELECT * FROM DEMO_CUSTOMER AS OF TIMESTAMP TO_TIMESTAMP('21-02-2018 04:24:40 PM','DD-MM-RRRR HH:MI:SS AM') MINUS SELECT * FROM DEMO_CUSTOMER INSERT INTO DEMO_CUSTOMER( SELECT * FROM DEMO_CUSTOMER AS OF TIMESTAMP TO_TIMESTAMP('21-02-2018 04:24:40 PM','DD-MM-RRRR HH:MI:SS AM') MINUS SELECT * FROM DEMO_CUSTOMER); COMMIT; SELECT * FROM DEMO_CUSTOMER; SELECT COUNT(*) FROM DEMO_CUSTOMER; ------ IF YOU UPDATE RECORD FLASHBACK QUERY CHECK --- UPDATE DEMO_CUSTOMER SET CUST_NAME = 'Oracle' WHERE cust_id = 104; commit; SELECT * FROM DEMO_CUSTOMER; SELECT * FROM DEMO_CUSTOMER AS OF TIMESTAMP TO_TIMESTAMP('21-02-2018 04:24:40 PM','DD-MM-RRRR HH:MI:SS AM') WHERE CUST_ID = 104 SELECT * FROM DEMO_CUSTOMER AS OF TIMESTAMP TO_TIMESTAMP('21-02-2018 04:30:00 PM','DD-MM-RRRR HH:MI:SS AM') WHERE CUST_ID = 104
Views: 595 Oracle Bangla
Função Oracle FLOOR
 
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Acesse o desafio: http://novidades.aprendaplsql.com/15-dias-de-funcoes-oracle A função FLOOR retornar o menor valor inteiro do parâmetro do tipo NUMBER que é passado. Abaixo exemplos da utilização da Função ORACLE FLOOR SELECT FLOOR(TO_NUMBER('10.2')) AS FLOOR FROM DUAL; SELECT FLOOR(-4.7) AS FLOOR FROM DUAL; SELECT FLOOR(TO_NUMBER('7.3')) AS FLOOR FROM DUAL; SELECT FLOOR(TO_NUMBER('7.9')) AS FLOOR FROM DUAL; https://www.youtube.com/playlist?list=PLMaqczuL07LkjrX6Rvx6TdNM-1nbUKG8p
Views: 794 Aprenda PL/SQL
How to insert multiple rows in just one query ?
 
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This works in Oracle: insert into pager (PAG_ID,PAG_PARENT,PAG_NAME,PAG_ACTIVE) select 8000,0,'Multi 8000',1 from dual union all select 8001,0,'Multi 8001',1 from dual The thing to remember here is to use the from dual statement.
Views: 106 Houssine Formation
Oracle SQL Programming Lesson 4 in Jinghpaw Language - Set Operators
 
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Compiling SQL queries using Union, Union All, Intercept, Minus, Where Exists, Where Not Exists Operators against the oracle database tables. Please watch in HD format for better video quality. --append/stack data (union,union all) --UNION removes duplicate rows. --UNION ALL does not remove duplicate rows. --Each SELECT statement within the UNION must have the same number of fields in the result sets with similar data types. select 'foo' as test_column from dual union select 'foo' as test_column from dual; select distinct test_column from (select 'foo' as test_column from dual union all select 'foo' as test_column from dual); Select region_name from regions Union Select region_name from regions; select first_name,last_name,job_id,manager_id,salary,deptment_id from employees where department_id in (20,60); --Union /union all select job_id,manager_id,'DEPT 20' as dept from employees where department_id=20 union all select job_id,manager_id,'DEPT 60' as dept from employees where department_id=60; --intersect returns only the rows common to the results of two queries select 'foo' as test_column from dual intersect select 'foo' as test_column from dual; Select region_name from regions; Select region_name from regions intersect Select region_name from regions; -- minus=except returns the rows from the first query that do not exist in the second query select 'foo' as test_column from dual minus select 'foo' as test_column from dual; Select region_name from regions minus Select region_name from regions; select first_name,last_name,job_id,manager_id,salary,'DEPT 20' as dept from employees where department_id=20 minus select first_name,last_name,job_id,manager_id,salary,'DEPT 60' as dept from employees where department_id=60; --complex compound queries Select department_id, count(*) from employees Where department_id in (20,30,40) Group by department_id; Select department_id, count(*) from employees Where department_id in (20) Group by department_id Union all Select department_id, count(*) from employees Where department_id in (30) Group by department_id Union all Select department_id, count(*) from employees Where department_id in (40) Group by department_id; Select department_id, count(*) from employees Where department_id in (20) Group by department_id intersect Select department_id, count(*) from employees Where department_id in (30) Group by department_id minus Select department_id, count(*) from employees Where department_id in (40) Group by department_id; Select department_id, count(*) from employees Where department_id in (20) Group by department_id Union Select department_id, count(*) from employees Where department_id in (30) Group by department_id Union all Select department_id, count(*) from employees Where department_id in (40) Group by department_id; --where exists, in / not exists, not in select e.last_name, e.department_id, e.salary from employees e where exists (select * from departments d where e.department_id=d.department_id); select e.last_name, e.department_id, e.salary from employees e where e.department_id in (select department_id from departments); select e.last_name, e.department_id, e.salary from employees e where not exists (select * from departments d where e.department_id=d.department_id); select e.last_name, e.department_id, e.salary from employees e where e.department_id not in (select department_id from departments);
Views: 42 Hkau Doi
SQL DUAL
 
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Yazılışı: Select * From Dual;
Views: 281 SQL Pl/SQL
Oracle tutorial : How to create Id with AUTO INCREMENT in Oracle PL SQL
 
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Oracle tutorial: How to create Id with AUTO INCREMENT in Oracle oracle tutorial for beginners sequence in oracle identity key in sql In this Oracle tutorial , we can create an auto increment field using ‘sequence’ object that can be assigned as primary keys. Using Oracle ‘sequence’ object, you can generate new values for a column. An Oracle sequence is an object like a table or a stored procedure. Examples CREATE SEQUENCE SYSTEM.MYSEQ START WITH 1 MAXVALUE 999999999999999999999999999 MINVALUE 1 NOCYCLE CACHE 20 NOORDER; CREATE OR REPLACE TRIGGER TR_CITY BEFORE INSERT ON CITY FOR EACH ROW BEGIN SELECT LPAD(LTRIM(RTRIM(TO_CHAR(myseq.NEXTVAL))),10,'0') INTO :NEW.id FROM DUAL; END; / Subscribe on youtube: https://www.youtube.com/channel/UCpiyAesWNYOXSz5GPq8lbkA For more tutorial please visit #techquerypond https://techquerypond.wordpress.com https://twitter.com/techquerypond
Views: 8529 Tech Query Pond
Oracle tutorial : Conversion Functions In Oracle
 
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Oracle tutorial : Conversion Functions In Oracle. oracle tutorial for beginners sql convert This Oracle tutorial video will show how to use conversion function in sql oracle TO_CHAR() , TO_DATE() , TO_NUMBER() these are mostly used functions. Conversions functions are used to convert one data type to another type. 1)To_CHAR ( number | date, [fmt], [nlsparams] ) The TO_CHAR function converts the number or date to VARCHAR2 data type in the specified format (fmt). 2)TO_NUMBER( char, [‘fmt’] ) The TO_NUMBER function converts the characters to a number format. 3)TO_DATE( char, [‘fmt’] ) The TO_DATE function converts the characters to a date data type. — TO_CHAR() fmYYYY YYYY/MM/DD SELECT TO_CHAR(SYSDATE, ‘YYYY/MM/DD’) FROM DUAL; — SO USING TO_CHAR U CAN GET FORMATE OF DATE ACCORDING TO UR REQURMENTS —- $99,999 99.99 99,00 SELECT TO_CHAR(487, ‘$99,0’) FROM DUAL; — U CAN GET DATA IN CURRENCY FORMAT —- TO_NUMBER() SELECT TO_NUMBER(‘1745′,’99999’) FROM DUAL; SELECT TO_NUMBER(‘1,47,982′,’9,99,999′) FROM DUAL; —- TO_DATE() — THIS CONVERT VARCHAR DATE TO PROPER DATE FORMAT SELECT TO_DATE(’30-JAN-1995′,’DD-MON-RRRR’) FROM DUAL; For more tutorial please visit #techquerypond https://techquerypond.com https://techquerypond.wordpress.com https://twitter.com/techquerypond
Views: 3670 Tech Query Pond
Can we drop the dual table?
 
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This video deals with how to delete the dual table and the consequences that we might face if we delete the table.
Views: 449 Manoj Chakravarthy
ORACLE SQL to get Years of Experience
 
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In this video, we will see how add_months, months_between can be used to get Years of work experience for an employee. SQL used in this video are given below. select add_months(sysdate,2) from dual; select months_between(sysdate,to_date('22082016','ddmmyyyy') ) from dual; select trunc(months_between(sysdate,to_date('22082016','ddmmyyyy') )) from dual; select mod(16,12) from dual; select * from employees; SELECT first_name,hire_date, trunc(months_between(SYSDATE,hire_date)) mnths_between from employees; 12 months = 1 year SELECT first_name,hire_date, trunc(months_between(SYSDATE,hire_date)) mnths_between, trunc(months_between(SYSDATE,hire_date)/12) years, trunc(months_between(SYSDATE,hire_date)) - trunc(months_between(SYSDATE,hire_date)/12)*12 No_of_Months from employees; SELECT hire_date,add_months(hire_date,trunc(months_between(SYSDATE,hire_date))) new_date from employees; SELECT hire_date, trunc(sysdate) - add_months(hire_date,trunc(months_between(SYSDATE,hire_date))) no_of_days from employees; SELECT first_name,hire_date, trunc(months_between(SYSDATE,hire_date)) mnths_between, trunc(months_between(SYSDATE,hire_date)/12) years, trunc(months_between(SYSDATE,hire_date)) - trunc(months_between(SYSDATE,hire_date)/12)*12 No_of_Months, trunc(sysdate) - add_months(hire_date,trunc(months_between(SYSDATE,hire_date))) no_of_days from employees;
Views: 15 Ganesh Anbarasu
Installing Linux & Windows in Dual Boot: CORRECT PARTITION SCHEME & BOOT LOADER SETUP
 
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In this video, I will cover two important steps of Installing Linux alongside your windows OS. 1) Choosing the correct Partition scheme 2) Setting up your Windows Boot loader to boot to Linux instead of Linux bootloader (e.g : GRUB) During a standard Linux installation, a user do not have to worry about this. But when you are trying to install Linux in separate partition, keeping your current OS, it gets little trickier. If you do not configure these two options correctly, you might end up corrupting your bootloader or previous OS installation. I will also show how you can add your Linux os option to the Windows 8 bootloader using BCDedit. This is important so that in case in future if you decide to get rid of Linux OS, your computer boots normally without any issues.
Views: 78231 XPSTECH
PART-2 (Oracle Functions) Oracle PL SQL Training - Fast Track Series
 
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Topic 2: Functions in PL SQL. In oracle there are two types of functions available. 1. Oracle Supplied Function (Built in Functions) Scaler Functions a) String Functions Length, instr, substr, rtrim, ltrim, lower, upper, concat, replace sqlplus sanket/patel SQL*Plus: Release 11.2.0.2.0 Production on Tue Feb 14 11:38:56 2017 Copyright (c) 1982, 2010, Oracle. All rights reserved. Connected to: Oracle Database 11g Express Edition Release 11.2.0.2.0 - Production SQL# SQL# select length('sanket') from dual; LENGTH('SANKET') ---------------- 6 SQL# select instr('sanket','n') from dual; INSTR('SANKET','N') ------------------- 3 SQL# select substr('sanket',1,3) from dual; SUB --- san SQL# select ltrim(' sanket ') from dual; LTRIM('S -------- sanket SQL# select rtrim(' sanket ') from dual; RTRIM('S -------- sanket SQL# select trim(' sanket ') from dual; TRIM(' ------ sanket SQL# select lower('SanKet') from dual; LOWER( ------ sanket SQL# select upper('SanKet') from dual; UPPER( ------ SANKET SQL# select concat('sanket','patel') from dual; CONCAT('SAN ----------- sanketpatel SQL# SQL# select replace('patel','e','i') from dual; REPLA ----- patil SQL# b) Date Functions Sysdate, add_months, extract, last_day, next_day, months_between c) Numeric Functions Trunc, ceil, round d) Oracle Type Cast or Conversion Functions To_char, to_date, to_number e) Null functions Nvl, Nvl2 Aggregate Functions Count,min,max,sum 2. User Defined Functions (PL SQL) CREATE [OR REPLACE] FUNCTION function_name [ (parameter [,parameter]) ] RETURN return_datatype IS | AS [declaration_section] BEGIN executable_section [EXCEPTION exception_section] END [function_name]; Characteristics of Functions • Function must returns some value • Function can be called from select statement • Function support all three types of parameters available in oracle like IN, OUT and IN OUT parameters. Types of Parameters: IN Parameter: We can’t overwrite value of such kind of parameters. It is used to pass reference values to program and utilized it within the programs or sub-programs or other standalone programs. OUT Parameter: We can overwrite value of such kind of parameters. It is not useful to pass reference values to program and utilized it within the programs or sub-programs or other standalone programs but output value must need to be hold by calling program. IN OUT Parameter: We can overwrite value as well as pass reference value to program or sub-programs or other standalone programs but output value must need to be hold by calling program. EXAMPLES: --FUNCTION WITH OUT PARAMETER CREATE OR REPLACE FUNCTION GET_DATE_HH24TIME RETURN VARCHAR2 IS HH24DATE_TIME VARCHAR2(20); BEGIN HH24DATE_TIME := TO_CHAR(SYSDATE,'DD/MM/YYYY HH24:MI:SS'); RETURN HH24DATE_TIME; END; / --FUNCTION WITH PARAMETER CREATE OR REPLACE FUNCTION GET_P_DATE_HH24TIME (P_HH24DATE_TIME IN DATE) RETURN VARCHAR2 IS HH24DATE_TIME VARCHAR2(20); BEGIN HH24DATE_TIME := TO_CHAR(P_HH24DATE_TIME,'DD/MM/YYYY HH24:MI:SS'); RETURN HH24DATE_TIME; END; / SELECT GET_P_DATE_HH24TIME(SYSDATE) FROM DUAL; Drop Functions: We can drop function from the database. DROP FUNCTION GET_P_DATE_HH24TIME; SQL# SELECT OBJECT_NAME FROM USER_OBJECTS WHERE OBJECT_TYPE = 'FUNCTION'; OBJECT_NAME --------------------------------------------------------------------------GET_DATE_HH24TIME GET_P_DATE_HH24TIME DROP FUNCTION GET_DATE_HH24TIME;
Views: 4713 Sanket Patel
Oracle Database Tutorial - SELECT Operators - DECODE, CASE, NVL, NVL2, SUM, COUNT etc
 
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This video tutorial on Oracle database provides detailed information on various operators used in SELECT statements. You can visit Oracle Database related videos here : https://www.youtube.com/watch?v=cDqlT7O8H0Q&list=PLRt-r4QiDOMfMmVU-8145pLcBxIdvAt8f&index=1 Website: http://guru4technoworld.wix.com/technoguru Facebook : https://www.facebook.com/a2zoftech/ Blog: http://dronatechnoworld.blogspot.com
Views: 48 Sandip M
Oracle Videos In Telugu dual table Part 12
 
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Oracle Videos In Telugu,ms excel 2007 tutorial in telugu,ms word 2007 tutorial in telugu,c language tutorial for beginners in telugu, excel 2007 tutorial in telugu, vlookup in excel 2007 with example in telugu,ms office 2007 tutorials in telugu,,ms access 2007 tutorial in telugu, tally erp 9 full tutorial in telugu,anu script telugu typing tutorial,photoshop in telugu,ms powerpoint 2007 tutorial in telugu, pagemaker tutorial in telugu,adobe photoshop tutorial in telugu, hardware and networking tutorials in telugu,excel tutorial in telugu,ms-excel 2007 tutorial in telugu, excel in telugu, telugu excel tutorial,adobe Photoshop in telugu,ms word 2007 in telugu , ms word 2007 tutorial in telugu, C basis in telugu, hardware in telugu, web designing in telugu,html in telugu, dreamweaver in telugu, c++ in telugu, java in telugu, autocad in telugu, computer tips in telugu, computer basics in telugu, hacking in telugu, computer tips in telugu -~-~~-~~~-~~-~- Please watch: "Best Useful software For Windows Telugu" https://www.youtube.com/watch?v=puGZTRTSoVA -~-~~-~~~-~~-~- #telugutechtuts #hafiztime
Views: 6797 Telugu TechTuts
ORACLE  SQL Coding Lesson 3 in Jinghpaw Language - More Character and Numeric Functions
 
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SQL Coding Lesson 3 in Jinghpaw Language - Lessons Continued. Please watch in HD mode for better video quality. --numeric functions SELECT ABS(12) FROM DUAL; SELECT ABS(-12.65) FROM DUAL; SELECT CEIL(48.99) FROM DUAL; SELECT CEIL(48.11) FROM DUAL; SELECT FLOOR(49.99) FROM DUAL; SELECT FLOOR(49.11) FROM DUAL; SELECT ROUND(49.11321,2) FROM DUAL; SELECT ROUND(49.11321,3) FROM DUAL; SELECT POWER(4,2) FROM DUAL; SELECT POWER(3,4) FROM DUAL; SELECT MOD(4,2) FROM DUAL; SELECT MOD(5051,100) FROM DUAL; select greatest(34,567,290,86) from dual; select least(34,567,290,86) from dual; select INSTR('Tech on the net', 'e') from dual; select INSTR('Tech on the net', 'e', 1, 1) from dual; select TRIM(' tech ') from dual; select TRIM(' ' FROM ' tech ') from dual; select TRIM(LEADING '0' FROM '000123') from dual; select TRIM(BOTH '1' FROM '123Tech111') from dual; select GREATEST(2, 5, 12, 3) from dual; select GREATEST('2', '5', '12', '3') from dual; select GREATEST('apples', 'oranges', 'bananas') from dual; select LEAST('2', '5', '12', '3') from dual; --null select (9000*null) from dual; select (null/9000) from dual; select (9000-null) from dual; select (9000+null) from dual; select distinct department_id from employees where commission_pct is not null; select last_name,job_id,coalesce(department_id,0) as dept,salary,commission_pct,coalesce(commission_pct,0) as comm_not_null, salary*commission_pct as multiplied_by_null, salary*coalesce(commission_pct,0) as commission_amt, salary+ (salary*coalesce(commission_pct,0)) as salary_plus_comm from employees where commission_pct is not null or department_id=20 order by dept; desc locations; select coalesce(postal_code,city,STATE_PROVINCE,COUNTRY_ID) as new_address,postal_code,city,STATE_PROVINCE,COUNTRY_ID from locations where COUNTRY_ID in ('JP','IT','UK'); --add more departments SELECT first_name ||'.'||last_name as "Employee Name",department_id, CASE when department_id in (10) THEN 'Accounting' WHEN department_id in (20) THEN 'Research' -- WHEN commission_pct is not null THEN 'Sales' WHEN department_id in (30) THEN 'Operations' ELSE 'Unknown' END department FROM employees ORDER BY first_name ||'.'||last_name ; SELECT last_name, department_id, DECODE( department_id ,10 ,'Accounting' ,20 ,'Research' ,30 ,'Sales' ,40 ,'Operations' ,'Unknown') department FROM employees ORDER BY last_name; select country_id,decode(country_id,'BR','Southern Hemisphere', 'AU','Southern Hemisphere', 'Northen Hemisphere') hemisphere from locations order by hemisphere; --set define on; select 'Coke & Popcorn' from dual; --upper,lower,coalesce and null select upper('sql') from dual; select lower('SQL') from dual; select initcap('sql') from dual; Select * from employees where email like '%SON'; Select * from employees where lower(email) like '%son'; Select * from employees where upper(last_name) like '%SON'; Select * from employees where lower(job_id) ='pu_clerk'; Select * from employees where initcap(email) ='Sbaida'; select * from employees where substr(phone_number,1,3) eq '515'; select * from employees where substr(phone_number,1,3) ne '515'; select * from employees where last_name gt 'King'; select * from employees where hire_date lt '01-JAN-1992'; --special character select * from jobs where job_id like 'SA\_%' escape '\'; select * from jobs where job_id like 'SA$_%' escape '$'; --translate, replace --( string1, string_to_replace, replacement_string ) select TRANSLATE('1tech23', '123', '456') from dual; select phone_number,translate(phone_number,'.','-') as modified_phnum from employees where rownum le 10; select job_id,translate(job_id,'_','&') as modified_phnum from employees where rownum le 10; select phone_number,translate(phone_number,'515','415') as modified_phnum from employees where rownum le 5; select phone_number,REPLACE(phone_number,'515','415') as modified_phnum from employees where rownum le 5; select REPLACE('123123tech', '123') from dual; select REPLACE('123tech123', '123') from dual; select REPLACE('222tech', '2', '3') from dual;
Views: 42 Hkau Doi
What is dual in Oracle
 
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What is dual in Oracle - Find out more explanation for : 'What is dual in Oracle' only from this channel. Information Source: google
Views: 7 atunakai8b
Oracle In Telugu SELECT COMMAND WITH WHERE CONDITON Part 11
 
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Oracle In Telugu,ms excel 2007 tutorial in telugu,ms word 2007 tutorial in telugu,c language tutorial for beginners in telugu, excel 2007 tutorial in telugu, vlookup in excel 2007 with example in telugu,ms office 2007 tutorials in telugu,,ms access 2007 tutorial in telugu, tally erp 9 full tutorial in telugu,anu script telugu typing tutorial,photoshop in telugu,ms powerpoint 2007 tutorial in telugu, pagemaker tutorial in telugu,adobe photoshop tutorial in telugu, hardware and networking tutorials in telugu,excel tutorial in telugu,ms-excel 2007 tutorial in telugu, excel in telugu, telugu excel tutorial,adobe Photoshop in telugu,ms word 2007 in telugu , ms word 2007 tutorial in telugu, C basis in telugu, hardware in telugu, web designing in telugu,html in telugu, dreamweaver in telugu, c++ in telugu, java in telugu, autocad in telugu, computer tips in telugu, computer basics in telugu, hacking in telugu, computer tips in telugu -~-~~-~~~-~~-~- Please watch: "Best Useful software For Windows Telugu" https://www.youtube.com/watch?v=puGZTRTSoVA -~-~~-~~~-~~-~- #telugutechtuts #hafiztime
Views: 7907 Telugu TechTuts
Oracle Rowid, RowNum and row_number
 
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Oracle Rowid, RowNum and row_number... Explained in detailed...
Views: 5430 CONNECT TO LEARN
Distinct operator in oracle in hindi ,english
 
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Description. The Oracle DISTINCT clause is used to remove duplicates from the result set. ... Syntax. The syntax for the DISTINCT clause in Oracle/PLSQL is: SELECT DISTINCT expressions FROM tables [WHERE conditions]; ... Note. ... Example - With Single Expression. ... Example - With Multiple Expressions. distinct on multiple columns in sql oracle distinct count oracle select distinct on one column where distinct sql sql distinct group by how to select unique records in oracle without using distinct select distinct count SQL Tutorial in Oracle - 4 NULL, LIKE, DISTINCT, ORDER BY SQL SELECT statement is used to fetch the data from a database table which returns data in the form of result table. These result ... Oracle Database11g tutorials 8 || SQL DISTINCT with multiple columns |SQL Distinct with Two columns will show how to use SQL DISTINCT keyword with SQL Select ... SQL Tutorial - 27: The DISTINCT Keyword The Bad Tutorials In this tutorial we'll see how we can pull out unique data from tables using the DISTINCT Clause in our Queries. 55. SELECT DISTINCT in SQL (Hindi) • Please Subscribe Channel Like, Share and Comment Visit : DISTINCT Clause in Oracle | Oracle SQL Tutorial Videos | • DISTINCT Clause in Oracle. Oracle Database11g tutorials 7 | |SQL DISTINCT keyword || SQL tutorials This SQL tutorial and Oracle database 11g tutorial for beginners will show how to use SQL DISTINCT keyword with SQL Select ... 06- Oracle SQL-Arabic Course Concatenation Operator-Quote q Operator-DISTINCT-DESCRIBEاوراكل ديفلوبر • أهلا بكم فى درس جديد من سلسلة دروس أوراكل ديفلوبر شرح SQL فى درس اليوم نتحدث عن Concatenation Operator & Quote q Operator & ... SQL with Oracle 10g XE - Using the DISTINCT Function Lecture Snippets In this video I use the DISTINCT function to list the values of a column from a query and remove the duplicate listings. When using ... SQL Distinct and Multiple Columns • Jamie King of Neumont University showing how SQL DISTINCT varies when multiple columns are present in the result set. Learn Oracle | Alias Names, Concatenation, Distinct Keyword Pebbles present, Learn Oracle 10g with Step By Step Video Tutorials. Learn Oracle 10g Tutorial series contains the following ... 8:54 Oracle Database tutorials 1: How to install Oracle Database 11g on windows 7 How To install Oracle Database 11g enterprise edition On windows 64 bit. Full installation in Single video. Enjoy SQL and ... Related
Views: 19 Muo sigma classes
Oracle SQL Developer Tutorial For Beginners  14   Basics of a SELECT statement
 
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Oracle SQL Developer Tutorial For Beginners Series. This course introduces Oracle SQL Development for its subscribers. Currently this is based on Oracle 12c. The test environment is in Windows 10.
Views: 3195 Sam Dhanasekaran
Parameters for Archiving in an Oracle database - Backup&Reco Video 7
 
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In this video you will learn about the various parameters available to configure archiving of redo log files in an Oracle Database. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 2837 Ramkumar Swaminathan

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