mysql>
mysql>
mysql> CREATE TABLE datetime_val
-> (
-> dt DATETIME
-> );
Query OK, 0 rows affected (0.00 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>
mysql> SELECT dt,
-> LEFT(dt,4) AS year,
-> MID(dt,9,2) AS day,
-> RIGHT(dt,2) AS second
-> FROM datetime_val;
+---------------------+------+------+--------+
| dt | year | day | second |
+---------------------+------+------+--------+
| 1970-01-01 00:00:00 | 1970 | 01 | 00 |
| 1987-03-05 12:30:15 | 1987 | 05 | 15 |
| 1999-12-31 09:00:00 | 1999 | 31 | 00 |
| 2000-06-04 15:45:30 | 2000 | 04 | 30 |
+---------------------+------+------+--------+
4 rows in set (0.00 sec)
mysql>
mysql> drop table datetime_val;
Query OK, 0 rows affected (0.00 sec)
|