drop foreign key
ALTER TABLE table_name
DROP CONSTRAINT fk_name;
drop foreign key
ALTER TABLE table_name
DROP CONSTRAINT fk_name;
how to remove foreign key constraint in sql
USE AdventureWorks2012;
GO
ALTER TABLE dbo.DocExe
DROP CONSTRAINT FK_Column_B;
GO
create table mysql with foreign key
CREATE TABLE Orders (
OrderID int NOT NULL,
OrderNumber int NOT NULL,
PersonID int,
PRIMARY KEY (OrderID),
FOREIGN KEY (PersonID) REFERENCES Persons(PersonID)
);
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