After the CHANGE keyword, you name the column you want to change, then specify the new definition, which inclu : Column « Table Index « SQL / MySQL






After the CHANGE keyword, you name the column you want to change, then specify the new definition, which inclu

      
des the new name.
mysql>
mysql> CREATE TABLE mytbl
    -> (
    ->     i INT,
    ->     c CHAR(1)
    -> );
Query OK, 0 rows affected (0.01 sec)

mysql>
mysql>
mysql> ALTER TABLE mytbl CHANGE i j BIGINT;
Query OK, 0 rows affected (0.01 sec)
Records: 0  Duplicates: 0  Warnings: 0

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

   
    
    
    
    
    
  








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