Drop foreign key only if it exists

Question

I\'m on a MySQL database.

I\'m doing this, but it doesn\'t work.

ALTER TABLE `object` DROP FOREIGN KEY IF EXISTS `object_ibfk_1`;

I\'ve

Answer 1

Which Database you are using??

If SQL　Server

if exists (select 1 from sys.objects where object_id = OBJECT_ID(N'[FKName]') AND      
parent_object_id = OBJECT_ID('TableName'))
alter table TableName drop constraint FKName