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MySQL Tutorial - Extract Unit Values from a Date and Time

By: FYIcenter.com

(Continued from previous topic...)

How To Extract a Unit Value from a Date and Time?

If you want to extract a specific date or time unit value out of a date or a time, you can use the EXTRACT(unit FROM expression) function. The tutorial exercise below gives you some good examples:

ELECT EXTRACT(DAY FROM NOW()) FROM DUAL;
   28

ELECT EXTRACT(HOUR FROM NOW()) FROM DUAL;
   23

ELECT EXTRACT(SECOND FROM NOW()) FROM DUAL;
   36

(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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