Use the EXTRACT( ) function to obtain individual parts of temporal values : EXTRACT « Date Time « SQL / MySQL

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

Use the EXTRACT( ) function to obtain individual parts of temporal values

    
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,
    -> EXTRACT(DAY FROM dt),
    -> EXTRACT(HOUR FROM dt)
    -> FROM datetime_val;
+---------------------+----------------------+-----------------------+
| dt                  | EXTRACT(DAY FROM dt) | EXTRACT(HOUR FROM dt) |
+---------------------+----------------------+-----------------------+
| 1970-01-01 00:00:00 |                    1 |                     0 |
| 1987-03-05 12:30:15 |                    5 |                    12 |
| 1999-12-31 09:00:00 |                   31 |                     9 |
| 2000-06-04 15:45:30 |                    4 |                    15 |
+---------------------+----------------------+-----------------------+
4 rows in set (0.00 sec)

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

   
    
    
    
  

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