SYSDATE() returns the current date and time. : SYSDATE « Date Time Functions « MySQL Tutorial

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MySQL Tutorial » Date Time Functions » SYSDATE

14. 42. 1. SYSDATE() returns the current date and time.

The format is 'YYYY-MM-DD HH:MM:SS' or YYYYMMDDHHMMSS format, depending on whether the function is used in a string or numeric context.

SYSDATE() returns the time at which it executes.

NOW() returns a constant time that indicates the time at which the statement began to execute.

The SET TIMESTAMP statement affects the value returned by NOW() but not by SYSDATE().


mysql>

mysql> SELECT NOW(), SLEEP(2), NOW();

+---------------------+----------+---------------------+

| NOW()               | SLEEP(2) | NOW()               |

+---------------------+----------+---------------------+

| 2007-07-22 19:46:18 |        0 | 2007-07-22 19:46:18 |

+---------------------+----------+---------------------+

1 row in set (2.00 sec)



mysql>

mysql> SELECT SYSDATE(), SLEEP(2), SYSDATE();

+---------------------+----------+---------------------+

| SYSDATE()           | SLEEP(2) | SYSDATE()           |

+---------------------+----------+---------------------+

| 2007-07-22 19:46:20 |        0 | 2007-07-22 19:46:22 |

+---------------------+----------+---------------------+

1 row in set (2.00 sec)



mysql>

mysql>

14. 42. SYSDATE
	14. 42. 1.	SYSDATE() returns the current date and time.
	14. 42. 2.	SELECT SYSDATE(), SLEEP(2), SYSDATE();

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