Adding a Temporal Interval to a Time : INTERVAL « Date Time « SQL / MySQL






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

Adding a Temporal Interval to a Time

     
mysql>
mysql>
mysql> CREATE TABLE time_val
    -> (
    ->  t1      TIME,
    ->  t2      TIME
    -> );
Query OK, 0 rows affected (0.01 sec)

mysql>
mysql> INSERT INTO time_val (t1,t2) VALUES('15:00:00','15:00:00');
Query OK, 1 row affected (0.00 sec)

mysql> INSERT INTO time_val (t1,t2) VALUES('05:01:30','02:30:20');
Query OK, 1 row affected (0.00 sec)

mysql> INSERT INTO time_val (t1,t2) VALUES('12:30:20','17:30:45');
Query OK, 1 row affected (0.00 sec)

mysql>
mysql> SELECT * FROM time_val;
+----------+----------+
| t1       | t2       |
+----------+----------+
| 15:00:00 | 15:00:00 |
| 05:01:30 | 02:30:20 |
| 12:30:20 | 17:30:45 |
+----------+----------+
3 rows in set (0.00 sec)

mysql>
mysql>
mysql> SELECT t1,
    -> SEC_TO_TIME(TIME_TO_SEC(t1) + 7200) AS 't1 plus 2 hours'
    -> FROM time_val;
+----------+-----------------+
| t1       | t1 plus 2 hours |
+----------+-----------------+
| 15:00:00 | 17:00:00        |
| 05:01:30 | 07:01:30        |
| 12:30:20 | 14:30:20        |
+----------+-----------------+
3 rows in set (0.00 sec)

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








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