Need More Help Un-Doing Query

[dieselpowered]

LOL I am sorry, what would these be?

$DB_site->query("ALTER TABLE ".TABLE_PREFIX."user ADD ratetradetotal SMALLINT(5) DEFAULT '0' NOT NULL");

$DB_site->query("ALTER TABLE ".TABLE_PREFIX."user ADD INDEX ratetradetotal (ratetradetotal)");

I very much appreciate your help!

I was thinking it would be:

ALTER TABLE user DROP ratetradetotal;

ALTER TABLE user DROP INDEX ratetradetotal ;