Mega Code Archive
Decomposing Dates and Times Using Formatting Functions
<![CDATA[
mysql>
mysql> CREATE TABLE datetime_val
-> (
-> dt DATETIME
-> );
Query OK, 0 rows affected (0.01 sec)
mysql>
mysql>
mysql> INSERT INTO datetime_val (dt) VALUES('1970-01-01 00:00:00');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO datetime_val (dt) VALUES('1987-03-05 12:30:15');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO datetime_val (dt) VALUES('1999-12-31 09:00:00');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO datetime_val (dt) VALUES('2000-06-04 15:45:30');
Query OK, 1 row affected (0.00 sec)
mysql>
mysql> SELECT * FROM datetime_val;
+---------------------+
| dt |
+---------------------+
| 1970-01-01 00:00:00 |
| 1987-03-05 12:30:15 |
| 1999-12-31 09:00:00 |
| 2000-06-04 15:45:30 |
+---------------------+
4 rows in set (0.00 sec)
mysql>
mysql> SELECT dt,
-> DATE_FORMAT(dt,'%Y') AS year,
-> DATE_FORMAT(dt,'%d') AS day,
-> TIME_FORMAT(dt,'%H') AS hour,
-> TIME_FORMAT(dt,'%s') AS second
-> FROM datetime_val;
+---------------------+------+------+------+--------+
| dt | year | day | hour | second |
+---------------------+------+------+------+--------+
| 1970-01-01 00:00:00 | 1970 | 01 | 00 | 00 |
| 1987-03-05 12:30:15 | 1987 | 05 | 12 | 15 |
| 1999-12-31 09:00:00 | 1999 | 31 | 09 | 00 |
| 2000-06-04 15:45:30 | 2000 | 04 | 15 | 30 |
+---------------------+------+------+------+--------+
4 rows in set (0.00 sec)
mysql>
mysql> drop table datetime_val;
Query OK, 0 rows affected (0.00 sec)
mysql>
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