DATE_FORMAT function : Date Format « Date Time « SQL / MySQL

1. SQL / MySQL
2. Date Time
3. Date Format

DATE_FORMAT function

    
mysql>
mysql>
mysql> CREATE TABLE mytable (
    ->   id int(11) NOT NULL default '0',
    ->   choice tinyint(4) NOT NULL default '0',
    ->   ts timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
    ->   PRIMARY KEY  (id)
    -> );
Query OK, 0 rows affected (0.00 sec)

mysql>
mysql> INSERT INTO mytable VALUES (1,4,'2003-01-14 15:46:18'),
    ->                                 (2,1,'2003-01-14 15:49:44'),
    ->                                 (3,4,'2003-01-14 15:49:50'),
    ->                                 (4,4,'2003-01-14 15:49:53'),
    ->                                 (5,4,'2003-01-14 15:49:54'),
    ->                                 (6,2,'2003-01-14 15:49:58');
Query OK, 6 rows affected (0.00 sec)
Records: 6  Duplicates: 0  Warnings: 0

mysql>
mysql>
mysql>
mysql> SELECT COUNT(*), DATE_FORMAT(ts, '%Y-%m') AS m_y
    -> FROM mytable;
+----------+---------+
| COUNT(*) | m_y     |
+----------+---------+
|        6 | 2003-01 |
+----------+---------+
1 row in set (0.00 sec)

mysql>
mysql>
mysql>
mysql> drop table mytable;
Query OK, 0 rows affected (0.00 sec)

mysql>

   
    
    
    
  

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