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MySQL Tutorial - Decrementing a Date by 1

By: FYIcenter.com

(Continued from previous topic...)

How To Decrement Dates by 1?

If you have a date, and you want to decrement it by 1 day, you can use the DATE_SUB(date, INTERVAL 1 DAY) function. You can also use the date interval subtraction operation as "date - INTERVAL 1 DAY". The tutorial exercise below gives you some good examples:

SELECT DATE_SUB(DATE('1997-03-01'), INTERVAL 1 DAY)
   FROM DUAL;
   1997-02-28

SELECT DATE('1997-01-31') - INTERVAL 1 DAY FROM DUAL;
   1997-02-28

(Continued on next topic...)

  1. What Are Date and Time Data Types?
  2. How To Write Date and Time Literals?
  3. How To Enter Microseconds in SQL Statements?
  4. How To Convert Dates to Character Strings?
  5. How To Convert Character Strings to Dates?
  6. What Are Date and Time Intervals?
  7. How To Increment Dates by 1?
  8. How To Decrement Dates by 1?
  9. How To Calculate the Difference between Two Dates?
  10. How To Calculate the Difference between Two Time Values?
  11. How To Present a Past Time in Hours, Minutes and Seconds?
  12. How To Extract a Unit Value from a Date and Time?
  13. What Are Date and Time Functions?
  14. What Is TIMESTAMP Data Type?
  15. How Many Ways to Get the Current Time?

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