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lucas's avatar
17 years ago
link
lucas
i ❤ demo
this is proving fairly useful:
http://hackmysql.com/

especially:
http://hackmysql.com/case4
lucas's avatar
17 years ago
link
lucas
i ❤ demo

ALTER TABLE `sa_matrix_module` ADD INDEX ( `module_id` )



query took 20.9950 sec

:D