微软不公开的存储过程 ，代码如下：
--Removed CHECK Constraint-------------------------
EXEC sp_MSForEachTable \'ALTER TABLE ? NOCHECK CONSTRAINT ALL\' --NOCHECK Constraints
print \'All Constraints Disable\'
go
--truncate All tables if trying to empty the database
--- Ensure the T_X_ref database is located on a different database
------------- Truncate All Tables from Model ----------------
-----To limit tables a table with sub model tables must be created and used joins-----
EXEC sp_MSForEachTable \'truncate TABLE ? \'
print \'All tables truncated\'
go
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