Subtract a time interval from a date. This synonym for DATE_SUB calculates a past date by subtracting a specified unit from a starting value.
SUBDATE(date,INTERVAL expr unit), SUBDATE(expr,days)When invoked with the INTERVAL form of the second argument, SUBDATE() is a synonym for . See for a complete list of permitted units.
The second form allows the use of an integer value for days. In such cases, it is interpreted as the number of days to be subtracted from the date or datetime expression expr.
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SELECT DATE_SUB('2008-01-02', INTERVAL 31 DAY);
+-----------------------------------------+
| DATE_SUB('2008-01-02', INTERVAL 31 DAY) |
+-----------------------------------------+
| 2007-12-02 |
+-----------------------------------------+
SELECT SUBDATE('2008-01-02', INTERVAL 31 DAY);
+----------------------------------------+
| SUBDATE('2008-01-02', INTERVAL 31 DAY) |
+----------------------------------------+
| 2007-12-02 |
+----------------------------------------+SELECT SUBDATE('2008-01-02 12:00:00', 31);
+------------------------------------+
| SUBDATE('2008-01-02 12:00:00', 31) |
+------------------------------------+
| 2007-12-02 12:00:00 |
+------------------------------------+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, SUBDATE(d, 10) from t1;
+---------------------+---------------------+
| d | SUBDATE(d, 10) |
+---------------------+---------------------+
| 2007-01-30 21:31:07 | 2007-01-20 21:31:07 |
| 1983-10-15 06:42:51 | 1983-10-05 06:42:51 |
| 2011-04-21 12:34:56 | 2011-04-11 12:34:56 |
| 2011-10-30 06:31:41 | 2011-10-20 06:31:41 |
| 2011-01-30 14:03:25 | 2011-01-20 14:03:25 |
| 2004-10-07 11:19:34 | 2004-09-27 11:19:34 |
+---------------------+---------------------+
SELECT d, SUBDATE(d, INTERVAL 10 MINUTE) from t1;
+---------------------+--------------------------------+
| d | SUBDATE(d, INTERVAL 10 MINUTE) |
+---------------------+--------------------------------+
| 2007-01-30 21:31:07 | 2007-01-30 21:21:07 |
| 1983-10-15 06:42:51 | 1983-10-15 06:32:51 |
| 2011-04-21 12:34:56 | 2011-04-21 12:24:56 |
| 2011-10-30 06:31:41 | 2011-10-30 06:21:41 |
| 2011-01-30 14:03:25 | 2011-01-30 13:53:25 |
| 2004-10-07 11:19:34 | 2004-10-07 11:09:34 |
+---------------------+--------------------------------+