Pull out the entire date or time part from DATETIME values using string-extraction functions such as LEFT( ) o : Date Function « Date Time « SQL / MySQL

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

Pull out the entire date or time part from DATETIME values using string-extraction functions such as LEFT( ) o

     
r RIGHT( )
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> SELECT dt,
    -> LEFT(dt,10) AS date,
    -> RIGHT(dt,8) AS time
    -> FROM datetime_val;
+---------------------+------------+----------+
| dt                  | date       | time     |
+---------------------+------------+----------+
| 1970-01-01 00:00:00 | 1970-01-01 | 00:00:00 |
| 1987-03-05 12:30:15 | 1987-03-05 | 12:30:15 |
| 1999-12-31 09:00:00 | 1999-12-31 | 09:00:00 |
| 2000-06-04 15:45:30 | 2000-06-04 | 15:45:30 |
+---------------------+------------+----------+
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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