WEEKDAY

Return the weekday index. This function returns the index of the day of the week (0=Monday, 6=Sunday).

Syntax

WEEKDAY(date)

Description

Returns the weekday index for date (0 = Monday, 1 = Tuesday, ... 6 = Sunday).

This contrasts with DAYOFWEEK() which follows the ODBC standard (1 = Sunday, 2 = Monday, ..., 7 = Saturday).

Examples

SELECT WEEKDAY('2008-02-03 22:23:00');
+--------------------------------+
| WEEKDAY('2008-02-03 22:23:00') |
+--------------------------------+
|                              6 |
+--------------------------------+

SELECT WEEKDAY('2007-11-06');
+-----------------------+
| WEEKDAY('2007-11-06') |
+-----------------------+
|                     1 |
+-----------------------+

CREATE TABLE t1 (d DATETIME);
INSERT INTO t1 VALUES
    ("2007-01-30 21:31:07"),
    ("1983-10-15 06:42:51"),
    ("2011-04-21 12:34:56"),
    ("2011-10-30 06:31:41"),
    ("2011-01-30 14:03:25"),
    ("2004-10-07 11:19:34");

SELECT d FROM t1 where WEEKDAY(d) = 6;
+---------------------+
| d                   |
+---------------------+
| 2011-10-30 06:31:41 |
| 2011-01-30 14:03:25 |
+---------------------+

_{This page is licensed: GPLv2, originally from fill_help_tables.sql}