how to remove a foreign key constraint in mysql code example

Example 1: drop foreign key

ALTER TABLE table_name
DROP CONSTRAINT fk_name;

Example 2: mysql remove foreign key constraint

ALTER TABLE jobs DROP FOREIGN KEY constraint_name

Example 3: how to remove foreign key constraint in sql

USE AdventureWorks2012;  
GO  
ALTER TABLE dbo.DocExe   
DROP CONSTRAINT FK_Column_B;   
GO