TIMESTAMPDIFF(unit,datetime_expr1,datetime_expr2): Returns the integer difference between datetime_expr1 and datetime_expr2 : TIMESTAMPDIFF « Date Time Functions « MySQL Tutorial

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MySQL Tutorial » Date Time Functions » TIMESTAMPDIFF   14. 47. 1. TIMESTAMPDIFF(unit,datetime_expr1,datetime_expr2): Returns the integer difference between datetime_expr1 and datetime_expr2 The unit for the result is given by the unit argument. The unit should be one of the following values: FRAC_SECOND, SECOND, MINUTE, HOUR, DAY, WEEK, MONTH, QUARTER, or YEAR. mysql> mysql> SELECT TIMESTAMPDIFF(MONTH,'2003-02-01','2003-05-01'); +------------------------------------------------+ | TIMESTAMPDIFF(MONTH,'2003-02-01','2003-05-01') | +------------------------------------------------+ |                                              3 | +------------------------------------------------+ 1 row in set (0.00 sec) 14. 47. TIMESTAMPDIFF 14. 47. 1.  TIMESTAMPDIFF(unit,datetime_expr1,datetime_expr2): Returns the integer difference between datetime_expr1 and datetime_expr2 14. 47. 2.  SELECT TIMESTAMPDIFF(FRAC_SECOND,'2003-02-01','2003-05-01'); 14. 47. 3.  SELECT TIMESTAMPDIFF(SECOND,'2003-02-01','2003-05-01'); 14. 47. 4.  SELECT TIMESTAMPDIFF(MINUTE,'2003-02-01','2003-05-01'); 14. 47. 5.  SELECT TIMESTAMPDIFF(HOUR,'2003-02-01','2003-05-01'); 14. 47. 6.  SELECT TIMESTAMPDIFF(DAY,'2003-02-01','2003-05-01'); 14. 47. 7.  SELECT TIMESTAMPDIFF(WEEK,'2003-02-01','2003-05-01'); 14. 47. 8.  SELECT TIMESTAMPDIFF(MONTH,'2003-02-01','2003-05-01'); 14. 47. 9.  SELECT TIMESTAMPDIFF(QUARTER,'2003-02-01','2003-05-01'); 14. 47. 10.  SELECT TIMESTAMPDIFF(YEAR,'2003-02-01','2003-05-01'); 14. 47. 11.  SELECT TIMESTAMPDIFF(YEAR,'2002-05-01','2001-01-01');

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