Reduce the number of significant characters per index in the index to the first 16 characters : Alter Table « Table Index « SQL / MySQL






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Reduce the number of significant characters per index in the index to the first 16 characters

     
mysql>
mysql> CREATE TABLE mytable (
    ->     titleID INT NOT NULL AUTO_INCREMENT,
    ->     title varchar(100),
    ->     PRIMARY KEY  (titleID)
    ->
    -> );
Query OK, 0 rows affected (0.00 sec)

mysql>
mysql>
mysql>
mysql> ALTER TABLE mytable ADD INDEX idxtitle (title(16));
Query OK, 0 rows affected (0.01 sec)
Records: 0  Duplicates: 0  Warnings: 0

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

mysql>








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