Table constrains order

a table has the check and pk and fk and unique.
When insert 1 row. What is the checking order?
How i can change it ?

You wouldn't be able to change the order in which the constraints are checked, that's entirely internal to the storage engine.

You could probably see the order of operations if you use the Windows debugger and install the SQL Server debug symbols:

Paul White has a number of in-depth blogs about how the SQL Server engine works, and he sometimes includes WinDbg output. This article doesn't, but does go over foreign key evaluation:

He also blogs at: