WEEK(date[,mode]) returns the week number for date : WEEK « Date Time Functions « MySQL Tutorial

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MySQL Tutorial » Date Time Functions » WEEK

14. 55. 1. WEEK(date[,mode]) returns the week number for date

The mode specifies whether the week starts on Sunday or Monday.

If the mode argument is omitted, the value of the default_week_format system variable is used.

The mode could be 0 ,1 ,2 ,3 ,4 ,5 ,6 ,7


mysql>

mysql> SELECT WEEK('1998-02-20');

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

| WEEK('1998-02-20') |

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

|                  7 |

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

1 row in set (0.00 sec)



mysql> SELECT WEEK('1998-02-20',0);

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

| WEEK('1998-02-20',0) |

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

|                    7 |

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

1 row in set (0.00 sec)



mysql> SELECT WEEK('1998-02-20',1);

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

| WEEK('1998-02-20',1) |

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

|                    8 |

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

1 row in set (0.00 sec)



mysql> SELECT WEEK('1998-12-31',1);

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

| WEEK('1998-12-31',1) |

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

|                   53 |

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

1 row in set (0.02 sec)



mysql> SELECT WEEK('2000-01-01',2);

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

| WEEK('2000-01-01',2) |

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

|                   52 |

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

1 row in set (0.00 sec)



mysql>

14. 55. WEEK
	14. 55. 1.	WEEK(date[,mode]) returns the week number for date
	14. 55. 2.	WEEK(date), parameter, returns the week of the year in the range 0 to 53:

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