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Oracle TO_DATE Function Explained with Examples
 
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https://www.databasestar.com/oracle-to_date/ The Oracle TO_DATE function is one of the most useful conversion functions in Oracle. It can be a little confusing though. The TO_DATE function is used to convert a character value to a date value. You can use it to convert a string that is in the format of a date, into a date data type. Why would you use this? Converting a character to a date is helpful if you want to insert a date into a column in a table. Being specific about the format (explicit) is better than assuming the conversion will be done for you (implicit). This TO_DATE function only converts to a DATE data type. If you want to convert to the other datetime data types, you’ll have to use other functions such as TO_TIMESTAMP or TO_TIMESTAMP_TZ. The syntax for this function is: TO_DATE(charvalue [, format_mask [, nls_date_language]]) The parameters for this function are: Charvalue: This is the character value that you want to convert to a date. It’s the main input of the function. Format_mask: This is the format that the input value, the charvalue, is in. This is used to help convert your character value into a date, as your character may be in a different format to the default. Nls_date_language: this is used to determine how the output is displayed. For more information about the Oracle TO_DATE function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-to_date/
Views: 2008 Database Star
Oracle || Date functions Part-1 by dinesh
 
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oracle date and time functions
 
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Video from our Oracle SQL course. Check out the full course at.. http://learn.hackpress.co/courses/oracle-sql-learning-by-example
Views: 47375 etldeveloper
Oracle Tutorial - Conversion Functions TO_DATE | TO_CHAR | TO_NUMBER
 
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Oracle Tutorials - Conversion Functions TO_DATE() | TO_CHAR() | TO_NUMBER()
Views: 1358 Tech Acad
Oracle TO_CHAR Function
 
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https://www.databasestar.com/oracle-to_char/ The Oracle TO_CHAR function is a common and useful string manipulation function. It allows you to convert a number or a date value into a string value. It allows you to take a number or a string, and convert it to a VARCHAR2 data type. The syntax of the function is: TO_CHAR( input_value, [format_mask], [nls_parameter] ) The parameters are: - input_value: this is the value to convert to a VARCHAR2 value. It can be one of many different number or date data types. - format_mask is an optional parameter and allows you to specify the format to display the output as. If this is omitted, the function uses a default format. - nls_parameter: this is also optional and lets you determine a regional parameter for displaying the output value. The format mask helps you determine what your output is displayed as. For example, if you provide the date of May 3rd, and the output is ‘03/05/2018’, how do you know if this is May 3rd or March 5th? Using a format mask can specify which format is used. The function is similar to the TO_NUMBER and TO_DATE functions, in that they both convert a specific data type. For more information about the Oracle TO_CHAR function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-to_char/
Views: 1396 Database Star
SQL 12c Tutorial 11 : SQL  Numeric Functions ROUND TRUNC MOD
 
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SQL 12c Tutorial 11 : SQL Numeric Functions ROUND TRUNC MOD SQL Tutorial for beginners Oracle SQL 12c Tutorial for beginners ROUND TRUNC MOD
Views: 1067 TechLake
Oracle Tutorial - Numerical/Math Functions TRUNC | MOD
 
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Oracle Tutorials: Numric/Math Functions TRUNC and MOD
Views: 79 Tech Acad
คำสั่ง TRUNC ตัดค่าวันที่กับตัวเลขแบบง่าย ๆ ใน Oracle
 
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คำสั่ง TRUNC ตัดค่าวันที่กับตัวเลขแบบง่าย ๆ ใน Oracle ดูเพิ่มเติมได้ที่ http://www.doesystem.info/2016/07/oracle-trunc.html โปรแกรม สอนใช้โปรแกรม สอน แนะนำ และช่วยแก้ปัญหา เกี่ยวกับคอมพิวเตอร์และไอที สอนการใช้งาน การเรียนรู้ การแก้ปัญหา การทำเว็บไซต์ การเขียนโปรแกรม และไอทีอื่น ๆ Oracle คำสั่ง TRUNC เบื้องต้น บทความนี้เรามาดูคำสั่งใน Oracle กันอีกซักหน่อย ซึ่งคำสั่งนั้นคือ TRUNC ครับ ในคำสั่ง TRUNC นั้นสามารถใช้ได้ทั้งตัวเลขและก็เวลาเลยครับ นั่นก็แปลว่ามันจะมีทั้งคำสั่ง TRUNC(date) และก็ TRUNC(number) มาดู Syntax กันก่อนดีกว่าครับ TRUNC(number) Syntax ของ TRUNC(number) แสดงได้ดังด้านล่าง TRUNC(n1 [, n2 ]) TRUNC(number) เมื่อเรียกใช้จะรีเทิร์นค่าเป็นตัวเลขที่ถูกตัดออก ตัวตำแหน่งของตัวที่ถูกตัดออกจะถูกกำหนดด้วย n2 แต่ถ้าไม่ได้กำหนด n2 มาให้ n2 จะถูกแทนที่ด้วยเลข 0 ในฟังก์ชัน TRUNC(number) นี้เราสามารถกำหนดได้ทั้งจำนวนลบ บวก หรือ 0 ก็ได้ทั้งนั้น เรามาดูตัวอย่างการใช้งานกัน ตัวอย่างคำสั่ง TRUNC(number) แบบง่าย ๆ select trunc(19.32, 0) from dual; ผลลัพธ์ที่ได้ก็คือ 19 เพราะตัดตำแหน่งที่ 0 select trunc(19.32, 1) from dual; ผลลัพธ์ที่ได้คือ 19.3 เพราะตัดตำแหน่งที่ 1 select trunc(19.32, -1) from dual; ผลลัพธ์ที่ได้คือ 10 เพราะตัดตำแหน่งที่ -1 นั่นคือย้อนกลับไปหนึ่งตำแหน่งก็คือ 10 เลข 9 ตัดทิ้ง TRUNC(date) Syntax ของ TRUNC(date) แสดงได้ดังด้านล่าง TRUNC(date [, fmt ]) TRUNC(date) เมื่อเรียกใช้ฟังก์ชันนี้แล้วจะรีเทิร์นค่าเป็น Date ซึ่ง Date ที่ได้จะเป็นเวลาที่ถูกตัดโดยกำหนดไว้ใน fmt ข้อมูลที่ได้จะเป็นข้อมูล Date เสมอแม้ว่าจะกำหนดตัวแปรเป็น DateTime ก็ตามแต่ สำหรับ fmt ที่ใส่ได้นั้นแสดงได้ตามด้านล่าง Unit Valid format parameters Year SYYYY, YYYY, YEAR, SYEAR, YYY, YY, Y ISO Year IYYY, IY, I Quarter Q Month MONTH, MON, MM, RM Week WW IW IW W W Day DDD, DD, J Start day of the week DAY, DY, D Hour HH, HH12, HH24 Minute MI เมื่อได้ format แล้วเรามาลองเรียกใช้งานกันดูครับ ตัวอย่างง่าย ๆ สำหรับการใช้งานฟังก์ชัน TRUNC ใน Oracle แสดงได้ดังนี้ select trunc(to_date('04-07-2016', 'DD-MM-YYYY'), 'YEAR') from dual; เมื่อรันคำสั่งนี้จะได้ผลลัพธ์เป็น 01-JAN-16 ซึ่งเราใช้ฟอร์แมท YEAR เป็นฟอร์แมทของปีดังนั้นมันจะตัดทิ้งแล้วไปต้นปีนั่นก็คือวันที่ 1 มกราของปีนั้น ๆ คือ 1 JAN 2016 select trunc(to_date('04-07-2016', 'DD-MM-YYYY'), 'MONTH') from dual; ตัวอย่างนี้เมื่อรันแล้วจะได้ผลลัพธ์เป็น 01-JUL-16 ซึ่งก็ได้ว่าฟอร์แมทที่เราใช้นั้นเป็น MONTH ซึ่งเป็นเดือน ดังนั้นมันจะกระโดดไปต้นเดือนแล้วตัดส่วนอื่นทิ้งนั่นก็คือต้นเดือนวันที่ 1 JUL 2016 สำหรับฟอร์แมทอื่น ๆ หรือตัวเลขอื่น ๆ ของไปเล่นกันดูครับ
Views: 426 Akira Shoyasu
SQL 36, trunc function
 
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What you can do with trunc function in SQL
Views: 4209 hammadshams
trunc(sysdate-1)
 
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Views: 161 matthew naquin
Oracle Tutorial - Date Functions MONTHS_BETWEEN | ADD_MONTHS
 
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Oracle Tutirials: Date functions MONTHS_BETWEEN () | ADD_MONTHS ()
Views: 203 Tech Acad
mod, power  sqrt & trunc | sql functions | oracle database 11g version 2 |
 
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executed in oracle database 11g version 2
Views: 259 Education 4u
Working with dates in Oracle PLSQL.
 
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Dates in Oracle PL SQL is definitely the most powerful among all other databases. It gives us full flexibility to manipulate it of our choice, whether you are calculating days, months or year, printing date and time in various format. Useful date functions add_months, months_between, last_day, next_day and to_char helps us a lot in handling date time in our pl sql programming.
Views: 5848 Subhroneel Ganguly
Oracle Tutorial Date Function - 2
 
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Oracle Date Function, Order by Month Year. Getting employee count hired month, yearwise and order by hiring month and year. SQL Used in the video below. select * from employees order by hire_date; select hire_date,to_char(hire_date,'Month,YYYY') from employees; select to_char(hire_date,'Month,YYYY')Month_Year,count(*) No_Of_Employees from employees group by to_char(hire_date,'Month,YYYY') order by to_char(hire_date,'Month,YYYY') select to_char(hire_date,'Month,YYYY')Month_Year,count(*) No_Of_Employees from employees group by to_char(hire_date,'Month,YYYY') order by to_date(to_char(hire_date,'Month,YYYY'),'Month,YYYY') select replace(to_char(hire_date,'Month,YYYY'),' ','')Month_Year,count(*) No_Of_Employees from employees group by to_char(hire_date,'Month,YYYY') order by to_date(to_char(hire_date,'Month,YYYY'),'Month,YYYY')
Views: 97 Ganesh Anbarasu
Oracle - SQL - Date Functions
 
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Oracle - SQL - Date Functions Watch more Videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Anadi Sharma, Tutorials Point India Private Limited.
trunc(sysdate -1)
 
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video for the song trunc(sysdate -1) from the Foreign Key EP by San Mateo
Views: 39 San Mateo
Oracle Tutorial Date Function - An Introduction
 
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In this video, we have covered Oracle SQL Date functions: SYSDATE , CURRENT_DATE , MONTHS_BETWEEN , ADD_MONTHS , TRUNC. This video covers topics required for Oracle 1Z0-071 certification exam.
Views: 27 Ganesh Anbarasu
SQL To_char Function with excellent examples
 
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SQL To_char Function with excellent examples
Views: 8069 SQL Guru
Date Time Handiling Using To_Date and To_Char (Oracle)
 
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Date Time Handling Using To_Date and To_Char (Oracle) Discussion on an Interview question Useful Links: http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions183.htm https://www.techonthenet.com/oracle/functions/to_date.php
Views: 3185 CodeSmith 001
Round and Truncate in SQL | Round and Truncate function in MYSQL | Round and Truncate in DBMS |
 
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This video contains how the Round () and Truncate( ) works. Both are the functions . Both has some similarity and some dissimilarity.Both works same if we use negative number after the comma where as both works differently if we use positive number after the comma. Sometimes its really difficult to understand the concept of round and truncate. In this video both are explained with the help of diagram. This video will help to understand how both of them works exactly. Please leave your comments
Views: 5869 GABS CLASSES
Oracle SQL Video Tutorial 18 - Working with DATE functions
 
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Oracle SQL Video Tutorials 18 - Working with DATE functions explained
Views: 4921 Just Channel
Oracle TRUNC: Number function
 
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Oracle ROUND: Number function: https://www.youtube.com/watch?v=eWm_jON6NUI&index=1&list=PLjBraywgeSpHfYFw3HbwWLdThGzwNGDSR Oracle MOD: Number function: https://www.youtube.com/watch?v=eMGgo_1y6b4&list=PLjBraywgeSpHfYFw3HbwWLdThGzwNGDSR&index=3 The usage of SELECT Playlist: https://www.youtube.com/watch?v=ZwgiIiD1dWE&list=PLjBraywgeSpEW2f7AK4Ddt6BRxW0HWN74
Using Select (6) and Decode,NVL,ROUND,TRUNC,MONTHS_Between,SubStr,Instr
 
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Beginner lessen for Oracle statement with Single row function
Views: 1616 Harith Jawad
2 13 SYSDATE vs CURRENT DATE
 
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Oracle SQL SYSDATE vs CURRENT_DATE
Views: 598 Mahesh Peiris
Oracle Tutorial - Date Functions NEXT_DAY | LAST_DAY
 
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Oracle Tutorials - Date Functions NEXT_DAY( ) | LAST_DAY( )
Views: 188 Tech Acad
ORACLE SQL Tutorial 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: 70 Ganesh Anbarasu
Oracle TO_NUMBER Function
 
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https://www.databasestar.com/oracle-to_number/ The Oracle TO_NUMBER function is used to convert a text value into a number value. It’s similar to TO_CHAR and TO_DATE, but converts a value to a number. The number will also be rounded to a specified number of digits, and returned as a NUMBER value. The syntax is: TO_NUMBER( input_value, [format_mask], [nls_parameter] ) The input_value is the value to be converted to a number. Commonly this is provided as a string (e.g. CHAR or VARCAHR2) but can be several other data types as well. The format_mask is the format that the output value should be displayed as. It must be a valid number format. This is an optional value. The final parameter, nls_date_language, is used to work out how the output is displayed, such as how to display currency symbols. It’s also an optional value. For more information about the Oracle TO_NUMBER function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-to_number/
Views: 2549 Database Star
Oracle SQL TUTORIAL – Date columns with Time in Where condition
 
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In this video, we will see how to retrieve records for a specific time duration. SQLs used in this video are given below. select * from employees; alter session set nls_date_format = 'DD-MON-YYYY HH24:MI:SS'; SELECT DBMS_RANDOM.VALUE(0,9) FROM DUAL; SELECT SYSDATE-DBMS_RANDOM.VALUE(0,9) FROM DUAL; SELECT FIRST_NAME,LAST_NAME, SYSDATE-DBMS_RANDOM.VALUE(0,9) CREATED_DATE FROM EMPLOYEES; CREATE TABLE EMP_TEST AS SELECT FIRST_NAME,LAST_NAME, SYSDATE-DBMS_RANDOM.VALUE(0,9) CREATED_DATE FROM EMPLOYEES; SELECT * FROM EMP_TEST ORDER BY CREATED_DATE DESC; select sysdate from dual; select sysdate,trunc(sysdate) from dual; 26 sep 2018 00:00:00 to 26 sep 2018 23:59:59 select sysdate,trunc(sysdate),trunc(sysdate)+0.99999 from dual; Records that got created yesterday.. 25 sep 2018 00:00:00 to 25 sep 2018 23:59:59 select trunc(sysdate-1),trunc(sysdate-1)+0.99999 from dual; SELECT * FROM emp_test WHERE created_date BETWEEN trunc(SYSDATE-1) AND trunc(SYSDATE-1)+0.99999 order by created_date; Retrieve records for 22nd Septembter 2018 SELECT * FROM emp_test WHERE created_date BETWEEN to_date('22-sep-2018 00:00:00','dd-mon-yyyy hh24:mi:ss') AND to_date('22-sep-2018 23:59:59','dd-mon-yyyy hh24:mi:ss') order by created_date; SELECT * FROM emp_test WHERE created_date BETWEEN to_date('22-sep-2018','dd-mon-yyyy') AND to_date('22-sep-2018 23:59:59','dd-mon-yyyy hh24:mi:ss') order by created_date; -- Get all records created in last 24 hours select sysdate,sysdate-1 from dual; SELECT * FROM emp_test where created_date between sysdate-1 and sysdate order by created_date;
Views: 167 Ganesh Anbarasu
38. Date Functions - Add_Months, Last_Day, Months_Between, Next_Day, To_Date, New_Time in Oracle
 
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In this video you will learn about Date Functions { Add_Months(), Last_Day(), Months_Between(), Next_Day(), To_Date(), New_Time() } in Oracle. Unlike other programming language Oracle also uses functions to perform common operations. For Support =========== Email: [email protected] Contact Form: http://www.learninhindi.com/home/contact Our Social Media ================ Facebook: https://www.facebook.com/LearnInHindi Twitter: https://twitter.com/LearnInHindi For Training & Videos ===================== For more videos and articles visit: http://www.learninhindi.com Free Java Programming In Hindi Course ===================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAwwhMyoLISrxkXTADGp7PH Free Oracle PL/SQL Programming In Hindi Course ============================================== https://www.youtube.com/playlist?list=PLB5DA82419C2D99B6 Free C Programming In Hindi Course ================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAxKpBLMWogxSdy6BZcsAJq Trips & Tricks Channel ====================== https://www.youtube.com/channel/UCGmLfkuCo-3lHHJXRJ9HUMw Programming in Hindi Channel ============================ https://www.youtube.com/channel/UCudElIDgwNrybeAvXIy1HZQ
Views: 20225 ITORIAN
Oracle NVL Function Explained with Examples
 
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https://www.databasestar.com/oracle-nvl-nvl2-logical-functions/ The Oracle NVL function allows you to check a value and return a different value if that value is NULL. It’s great for using another value if the first one is NULL or an optional value, for example people’s phone numbers. It’s also good alongside aggregate functions and grouping so you can see what the difference is between a subtotal row and an actual NULL value. The syntax of the Oracle NVL function is: NVL( check_value, replace_value ) The parameters are: - check_value (mandatory): This is the value that is displayed to the user. It is also the value that is checked for NULL. - replace_value (mandatory): This is the value that appears if the check_value is NULL. The function can use many different data types as parameters: string, date, or numeric. However, both parameters need to be the same type. For more information about the Oracle NVL function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-nvl-nvl2-logical-functions/
Views: 595 Database Star
Curso Oracle Sql - Video 20 - Funciones Conversion
 
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Conversiones Implícitas. Conversiones Explícitas: To_Date. To_Char. To_Number.
Oracle CEIL Function
 
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https://www.databasestar.com/oracle-ceil/ The Oracle CEIL function, short for “ceiling”, will return the smallest integer value greater than the specified number. In other words, it rounds up to the nearest whole number. It’s the opposite of the FLOOR function, which rounds down. The syntax of CEIL is: CEIL(number) The number parameter can be any numeric data type. The CEIL function will return a number in the same data type as the parameter. So, you can use CEIL with decimal numbers, which is actually where CEIL works best. You can use it with whole numbers too. It won’t show an error, it just might display the same value as provided (e.g. CEIL(8) would be 8). You can also use functions inside CEIL. For example, CEIL(SUM(salary)) will SUM all of the salary values, and then round them up to the nearest whole number. Like with all functions, the Oracle CEIL function can also use column aliases. So, instead of having your column labelled “CEIL(8.12)” or “CEIL(salary)”, you can label your column “salary_rounded” or something that makes more sense. The CEIL function is similar to the ROUND function. However, ROUND will round up or down, where CEIL will always round up. The TRUNC function will also do some kind of rounding, but it removes decimals from a number which may cause it to “round” down. For more information, including the code used in the examples, read the related article here: https://www.databasestar.com/oracle-ceil/
Views: 686 Database Star
Oracle DV - Use TimestampDiff to Calculate Interval Between Two Dates
 
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This video shows simple way to leveage TimestampDiff function in Oracle DV to calculate time interval between two dates. Download the latest version of DV today https://www.oracle.com/technetwork/middleware/oracle-data-visualization/downloads/oracle-data-visualization-desktop-2938957.html.
Views: 329 Oracle Analytics
Using Select (7) and Case, To_Date,To_Char, To_number
 
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Beginner lessen for Oracle Case Statement and Single row Conversion function
Views: 3373 Harith Jawad
Using the   TRUNC  Function
 
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تعلم أوركل
Views: 231 حسن محمد
Oracle - SQL - Conversion Functions
 
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Oracle - SQL - Conversion Functions Watch more Videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Anadi Sharma, Tutorials Point India Private Limited.
018-Oracle SQL 12c: Date functions
 
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تعلم اوراكل حتى الاحتراف تعلم اوراكل من الصفر
Views: 5066 khaled alkhudari
12-Oracle  Functions - Months_Between - Add_Months -Next_Day - Last_Day - Round - Trunc.avi
 
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12-Arithmetic with Dates - Functions - Months_Between - Add_Months -Next_Day - Last_Day - Round - Trunc
Views: 2017 Adel Sabour
Oracle SQL Data Conversion-Implicit Explicit
 
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Oracle SQL Data Conversion Implicit Explicit Online console used -- https://livesql.oracle.com Implicit and Explicit data conversion to_char, to_number, to_date and cast functions Queries: /*IMPLICIT DATA CONVERSION EXAMPLES*/ SELECT salary + '10' FROM hr.employees; SELECT last_name FROM hr.employees WHERE employee_id = '200'; SELECT last_name FROM hr.employees WHERE employee_id = 200; SELECT last_name FROM hr.employees WHERE hire_date = '03-MAR-97'; Create table birth(name varchar2(15), dob date); Insert into birth values ('nids', '12/jan/58'); Insert into birth values ('panda', '14/feb/48'); Insert into birth values ('Spider', '14/feb/1958'); Insert into birth values ('agnes', '14/feb/2048'); Select * from birth; SELECT to_date('12-jan-58') - to_date('14-feb-48') from DUAL; '01/01/2058','MM/DD/RRRR' 01/01/2058 '01/01/2048','MM/DD/RRRR' 01/01/2048 '01/01/48','MM/DD/RRRR' 01/01/2048 '01/01/58','MM/DD/RRRR' 1/01/1958 '01/01/48','MM/DD/YYYY' 01/01/0048 '01/01/58','MM/DD/YYYY' 01/01/0058 '01/01/58','MM/DD/YY' 01/01/2058 '01/01/48','MM/DD/YY' 01/01/2048 SELECT * FROM NLS_SESSION_PARAMETERS WHERE PARAMETER = 'NLS_DATE_FORMAT'; Alter session set nls_date_format = 'DD-MM-RRRR'; Select * from birth; alter session set nls_date_format = 'DD-MON-YYYY'; Select * from birth; ALTER session set nls_date_format = 'DD-MON-YY'; SELECT to_date('12-jan-58') - to_date('14-feb-48') from DUAL; ALTER session set nls_date_format = 'DD-MON-RR'; /*EXPLICIT DATA CONVERSION EXAMPLES*/ /*TO_CHAR, TO_DATE, TO_NUMBER*/ SELECT first_name, TO_CHAR (hire_date, 'MON DD, YYYY') HIRE_DATE, TO_CHAR (salary, '$99999.99') Salary FROM hr.employees; SELECT TO_CHAR('01110') FROM DUAL; SELECT TO_CHAR('01110' + 1) FROM DUAL; SELECT TO_DATE('2012-06-05', 'YYYY-MM-DD') FROM dual; SELECT TO_DATE( '5 Jan 2017', 'DD MON YYYY' ) FROM dual; SELECT TO_NUMBER('1210.73', '9999.99') from DUAL; SELECT TO_NUMBER('$65.169', 'L99.999') FROM DUAL; SELECT TO_NUMBER('123,456,789', '999,999,999') FROM DUAL; /*This example takes a complicated string, determines that it is in certain format, and specifies the numeric characters to use*/ SELECT TO_NUMBER('$17 218,00', 'L999G999D00',' NLS_NUMERIC_CHARACTERS='', ''') FROM DUAL; /*CAST*/ SELECT CAST( '22-Aug-2003' AS varchar2(30) ) from dual; SELECT CAST('245.205' AS NUMBER(5,2)) FROM dual; /*      -- Result: 245.21 (note that the value is rounded, not truncated to 245.20) */ SELECT CAST(245.205 AS NUMBER(5,2)) FROM dual; SELECT CAST ('123456' AS NUMBER) + 5 FROM DUAL; SELECT CAST ('5.05.2017' AS DATE) +5 FROM DUAL; /*check the default date format. That's why it give error*/ SELECT CAST ('30-APRIL-2015' AS DATE) +5 FROM DUAL; SELECT CAST (SYSDATE AS TIMESTAMP) FROM DUAL; SELECT SYSDATE FROM DUAL;
Views: 127 Nids Dixit
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
SQL 12c Tutorial 12 : SQL  Date Manipulation functions
 
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SQL 12c Tutorial 12 : SQL Date Manipulation functions SQL 12c Tutorial for beginners Oracle SQL 12c Tutorial for beginners MONTHS_BETWEEN ADD_MONTHS NEXT_DAY LAST_DAY ROUND TRUNC
Views: 204 TechLake
Oracle CURRENT_TIMESTAMP Function
 
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https://www.databasestar.com/oracle-date-functions/ The Oracle CURRENT_TIMESTAMP function will display the current date and time in the session time zone. Just like the CURRENT_DATE function, it uses the session time zone, which is where you logged in from. This could be different to the database time zone. The syntax of the CURRENT_TIMESTAMP function is: CURRENT_TIMESTAMP ( [precision] ) The return type of this function is TIMESTAMP WITH TIME ZONE. The precision parameter is optional, and it lets you specify the number of fractional seconds to return. If this is omitted, it uses the default of 6. It’s different to the SYSTIMESTAMP function, because CURRENT_TIMESTAMP returns the session timezone, and SYSTIMESTAMP returns the database time zone. So, if I’m logging in from Melbourne, Australia, and the database is in London, England, then the CURRENT_TIMESTAMP will return a date and time that’s 10 hours ahead of SYSTIMESTAMP, and in a different time zone. It may be on the same day, or it could be a different day, depending on when I run the function. You can perform arithmetic on this function just like any other date value (e.g. CURRENT_TIMESTAMP - 7 for 7 days ago). However, it might be better to use interval data types so you can keep the original data type. For more information about the Oracle CURRENT_TIMESTAMP function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-date-functions/
Views: 358 Database Star
Date Functions in SQL | Oracle SQL fundamentals
 
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Enroll into full course with free cloud access for 30 days: https://dbagenesis.com/p/oracle-sql-fundamentals/
Views: 63 DBA Genesis
Oracle Date Function SQL | PL SQL | ORACLE
 
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Oracle Date Function
Views: 374 Online Pl Sql
ORACLE SQL 22: SYSDATE
 
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http://studyandshare.wordpress.com/ http://www.facebook.com/groups/studyandsharevn/
Views: 1523 studyandsharevn
ltrim & rtrim  | sql functions | oracle database 11g version 2 |
 
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executed in oracle database 11g version 2
Views: 210 Education 4u
How to use tricky things with SYSDATE
 
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How to use tricky things with SYSDATE like how to know the next day, next hour, next minuite etc.,
Views: 1262 Techie Rajesh
36. Number Functions in Oracle
 
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In this video you will learn about Number Functions in Oracle. Unlike other programming language Oracle also uses functions to perform common operations. For Support =========== Email: [email protected] Contact Form: http://www.learninhindi.com/home/contact Our Social Media ================ Facebook: https://www.facebook.com/LearnInHindi Twitter: https://twitter.com/LearnInHindi For Training & Videos ===================== For more videos and articles visit: http://www.learninhindi.com Free Java Programming In Hindi Course ===================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAwwhMyoLISrxkXTADGp7PH Free Oracle PL/SQL Programming In Hindi Course ============================================== https://www.youtube.com/playlist?list=PLB5DA82419C2D99B6 Free C Programming In Hindi Course ================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAxKpBLMWogxSdy6BZcsAJq Trips & Tricks Channel ====================== https://www.youtube.com/channel/UCGmLfkuCo-3lHHJXRJ9HUMw Programming in Hindi Channel ============================ https://www.youtube.com/channel/UCudElIDgwNrybeAvXIy1HZQ
Views: 17320 ITORIAN

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