Commonly used SQL Server Constraints: FOREIGN KEY, CHECK and DEFAULT
UPDATE statement conflicted with the FOREIGN KEY constraint on Sql Server 2014 - Stack Overflow
What is a foreign key in SQL Server
please help me im stuck here : The ALTER TABLE statement conflicted with the FOREIGN KEY constraint "FK_dbo.Customers_dbo.MembershipTypes_MembershipTypeId". The conflict occurred in database "aspnet-WebApplication3-20160817102050", table "dbo ...
sql server - Sql error on update : The UPDATE statement conflicted with the FOREIGN KEY constraint - Stack Overflow