Sql server 删除并重新创建所有约束并与sp_MSForEachTable sql server结合使用

我正在使用SSIS将一些测试数据加载到我们的数据仓库中，遇到了外键约束的老问题。我将删除/添加在本地测试环境中查找数据问题的所有数据。因此，在这一点上，我不太关心引用完整性。。。我遇到了一个方便的小问题：

-- disable referential integrity
EXEC sp_MSForEachTable 'ALTER TABLE ? NO CHECK CONSTRAINT ALL' 
GO 

EXEC sp_MSForEachTable 'TRUNCATE TABLE ?' 
GO 

-- enable referential integrity again 
EXEC sp_MSForEachTable 'ALTER TABLE ? CHECK CONSTRAINT ALL' 
GO

唯一的问题是，如果您有外键约束，那么它是无用的，因为您必须实际删除它们。有没有办法将此查询与将删除/重新创建所有约束的内容相结合？

不幸的是，没有

您必须删除带有外键的表

-- disable referential integrity
EXEC sp_MSForEachTable 'ALTER TABLE ? NO CHECK CONSTRAINT ALL' 
GO 
EXEC sp_MSForEachTable 'DELETE ?' 
GO 
-- enable referential integrity again 
EXEC sp_MSForEachTable 'ALTER TABLE ? CHECK CONSTRAINT ALL' 
GO

---

或者，先编写脚本并删除约束，然后再添加tjem
为此，请参阅本文，以

在小型数据库上使用DELETE并不重要，这样就可以工作了。。。谢谢你的帮助！可能重复的

   --Drop and Recreate Foreign Key Constraints

SET NOCOUNT ON

DECLARE @table TABLE(
   RowId INT PRIMARY KEY IDENTITY(1, 1),
   ForeignKeyConstraintName NVARCHAR(200),
   ForeignKeyConstraintTableSchema NVARCHAR(200),
   ForeignKeyConstraintTableName NVARCHAR(200),
   ForeignKeyConstraintColumnName NVARCHAR(200),
   PrimaryKeyConstraintName NVARCHAR(200),
   PrimaryKeyConstraintTableSchema NVARCHAR(200),
   PrimaryKeyConstraintTableName NVARCHAR(200),
   PrimaryKeyConstraintColumnName NVARCHAR(200)    
)

INSERT INTO @table(ForeignKeyConstraintName, ForeignKeyConstraintTableSchema, ForeignKeyConstraintTableName, ForeignKeyConstraintColumnName)
SELECT 
   U.CONSTRAINT_NAME, 
   U.TABLE_SCHEMA, 
   U.TABLE_NAME, 
   U.COLUMN_NAME 
FROM 
   INFORMATION_SCHEMA.KEY_COLUMN_USAGE U
      INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS C
         ON U.CONSTRAINT_NAME = C.CONSTRAINT_NAME
WHERE
   C.CONSTRAINT_TYPE = 'FOREIGN KEY'

UPDATE @table SET
   PrimaryKeyConstraintName = UNIQUE_CONSTRAINT_NAME
FROM 
   @table T
      INNER JOIN INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS R
         ON T.ForeignKeyConstraintName = R.CONSTRAINT_NAME

UPDATE @table SET
   PrimaryKeyConstraintTableSchema  = TABLE_SCHEMA,
   PrimaryKeyConstraintTableName  = TABLE_NAME
FROM @table T
   INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS C
      ON T.PrimaryKeyConstraintName = C.CONSTRAINT_NAME

UPDATE @table SET
   PrimaryKeyConstraintColumnName = COLUMN_NAME
FROM @table T
   INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE U
      ON T.PrimaryKeyConstraintName = U.CONSTRAINT_NAME

--SELECT * FROM @table

--DROP CONSTRAINT:
SELECT
   '
   ALTER TABLE [' + ForeignKeyConstraintTableSchema + '].[' + ForeignKeyConstraintTableName + '] 
   DROP CONSTRAINT ' + ForeignKeyConstraintName + '

   GO'
FROM
   @table

--ADD CONSTRAINT:
SELECT
   '
   ALTER TABLE [' + ForeignKeyConstraintTableSchema + '].[' + ForeignKeyConstraintTableName + '] 
   ADD CONSTRAINT ' + ForeignKeyConstraintName + ' FOREIGN KEY(' + ForeignKeyConstraintColumnName + ') REFERENCES [' + PrimaryKeyConstraintTableSchema + '].[' + PrimaryKeyConstraintTableName + '](' + PrimaryKeyConstraintColumnName + ')

   GO'
FROM
   @table

GO