Question

How can i select all fields in mysql starting with “2012-02”?

What i’ve tried:

mysql> SELECT title,id FROM dle_post WHERE approve='1' AND date = '2012-02-13 21:35:00';
+-------------------------------------------------+----+
| title                                           | id |
+-------------------------------------------------+----+
| test title                                      |  7 |
+-------------------------------------------------+----+


mysql> SELECT title,id FROM dle_post WHERE approve='1' AND date='2012-02%';
Empty set, 2 warnings (0.00 sec)

mysql> SHOW WARNINGS;
+---------+------+-----------------------------------------------------------------+
| Level   | Code | Message                                                         |
+---------+------+-----------------------------------------------------------------+
| Warning | 1292 | Incorrect datetime value: '2012-02%' for column 'date' at row 1 |
| Warning | 1292 | Incorrect datetime value: '2012-02%' for column 'date' at row 1 |
+---------+------+-----------------------------------------------------------------+

Answer 1

Ideally, dates should be treated as dates, not as strings. This query should return all rows for February 2012 and it should outperform LIKE % queries:

SELECT title, id
FROM dle_post
WHERE approve = 1 
AND date >= '2012-02-01' 
AND date <  '2012-02-01' + INTERVAL 1 MONTH