How To Convert Dates to Characters

Q

How To Convert Dates to Characters? - Oracle DBA FAQ - Understanding SQL Basics

✍: FYIcenter.com

A

You can convert dates to characters using the TO_CHAR() function as shown in the following examples:

SELECT TO_CHAR(SYSDATE, 'DD-MON-YYYY') FROM DUAL;
  -- SYSDATE returns the current date
07-MAY-2006 

SELECT TO_CHAR(SYSDATE, 'YYYY/MM/DD') FROM DUAL;
2006/05/07 

SELECT TO_CHAR(SYSDATE, 'MONTH DD, YYYY') FROM DUAL;
MAY       07, 2006

SELECT TO_CHAR(SYSDATE, 'fmMONTH DD, YYYY') FROM DUAL;
May 7, 2006

SELECT TO_CHAR(SYSDATE, 'fmDAY, MONTH DD, YYYY') FROM DUAL;
SUNDAY, MAY 7, 2006

2007-04-23, 5386👍, 0💬

How To Write Date and Time Interval Literals
How To Write Date and Time Interval Literals? - Oracle DBA FAQ - Understanding SQL Basics Date and time interval literals can coded as shown in the following samples: SELECT DATE '2002-10-03' + INTERVAL '123-2' YEAR(3) TO MONTH FROM DUAL -- 123 years and 2 months is added to 2002-10-03 03-DEC-25 SEL... 2007-04-23, 5822👍, 0💬

What Is NULL
What Is NULL? - Oracle DBA FAQ - Understanding SQL Basics NULL is a special value representing "no value" in all data types. NULL can be used on in operations like other values. But most opertations has special rules when NULL is involved. The tutorial exercise below shows you some examples: SET NUL... 2007-04-23, 5705👍, 0💬

How To Use NULL as Conditions
How To Use NULL as Conditions? - Oracle DBA FAQ - Understanding SQL Basics If you want to compare values against NULL as conditions, you should use the "IS NULL" or "IS NOT NULL" operator. Do not use "=" or "<>" against NULL. The sample script below shows you some good examples: SELECT 'A' IS... 2007-04-23, 5667👍, 0💬

How To Convert Times to Characters
How To Convert Times to Characters? - Oracle DBA FAQ - Understanding SQL Basics You can convert dates to characters using the TO_CHAR() function as shown in the following examples: SELECT TO_CHAR(SYSDATE, 'HH:MI:SS') FROM DUAL; 04:49:49 SELECT TO_CHAR(SYSDATE, 'HH24:MI:SS.FF') FROM DUAL; -- Error: S... 2007-04-23, 5664👍, 0💬

How To Write Numeric Literals
How To Write Numeric Literals? - Oracle DBA FAQ - Understanding SQL Basics Numeric literals can coded as shown in the following samples: SELECT 255 FROM DUAL -- An integer 255 SELECT -6.34 FROM DUAL -- A regular number -6.34 SELECT 2.14F FROM DUAL -- A single-precision floating point 2.14 SELECT -0.... 2007-04-24, 5387👍, 0💬

How To Convert Dates to Characters
How To Convert Dates to Characters? - Oracle DBA FAQ - Understanding SQL Basics You can convert dates to characters using the TO_CHAR() function as shown in the following examples: SELECT TO_CHAR(SYSDATE, 'DD-MON-YYYY') FROM DUAL; -- SYSDATE returns the current date 07-MAY-2006 SELECT TO_CHAR(SYSDAT... 2007-04-23, 5387👍, 0💬

How To Write Date and Time Literals
How To Write Date and Time Literals? - Oracle DBA FAQ - Understanding SQL Basics Date and time literals can coded as shown in the following samples: SELECT DATE '2002-10-03' FROM DUAL -- ANSI date format 03-OCT-02 SELECT TIMESTAMP '1997-01-31 09:26:50.124' FROM DUAL 31-JAN-97 09.26.50.124000000 AM -... 2007-04-24, 5362👍, 0💬

How To Convert Characters to Times
How To Convert Characters to Times? - Oracle DBA FAQ - Understanding SQL Basics You can convert dates to characters using the TO_CHAR() function as shown in the following examples: SELECT TO_CHAR(TO_DATE('04:49:49', 'HH:MI:SS'), 'DD-MON-YYYY HH24:MI:SS') FROM DUAL; -- Default date is the first day o... 2007-04-23, 5294👍, 0💬

How To Convert Characters to Dates
How To Convert Characters to Dates? - Oracle DBA FAQ - Understanding SQL Basics You can convert dates to characters using the TO_DATE() function as shown in the following examples: SELECT TO_DATE('07-MAY-2006', 'DD-MON-YYYY') FROM DUAL; 07-MAY-06 SELECT TO_DATE('2006/05/07 ', 'YYYY/MM/DD') FROM DUAL... 2007-04-23, 5260👍, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.