如何在一个查询中清除所有系统版本表？

Question

我有一个查询，它允许我在不破坏任何外键引用的情况下删除所有行并重置所有 table 的所有标识列。此查询适用于普通 SQL 服务器 tables:

EXEC sp_MSForEachTable 'ALTER TABLE ? NOCHECK CONSTRAINT ALL';
EXEC sp_MSForEachTable 'DELETE FROM ?';
EXEC sp_MSForEachTable 'ALTER TABLE ? WITH CHECK CHECK CONSTRAINT ALL';
EXEC sp_MSforeachtable @command1 = 'DBCC CHECKIDENT (''?'', RESEED, 0)';

问题是，现在我正在使用系统版本化时间 tables，之前的查询不再有效。我的版本 table 全部命名为 tbl_Foo，每个历史记录 table 的格式为 tbl_Foo_history.

我试过使用这样的东西：

EXEC sp_MSForEachTable 'ALTER TABLE ? SET (SYSTEM_VERSIONING = OFF)';

EXEC sp_MSForEachTable 'ALTER TABLE ? NOCHECK CONSTRAINT ALL';
EXEC sp_MSForEachTable 'DELETE FROM ?';
EXEC sp_MSForEachTable 'ALTER TABLE ? WITH CHECK CHECK CONSTRAINT ALL';
EXEC sp_MSforeachtable @command1 = 'DBCC CHECKIDENT (''?'', RESEED, 0)';

EXEC sp_MSforeachtable 'ALTER TABLE ? SET (SYSTEM_VERSIONING = ON (HISTORY_TABLE = ''?''_history))';

但它给出了错误：

SYSTEM_VERSIONING is not turned ON for table 'FOO.dbo.tbl_Foo_history'.

因为 sp_MSForEachTable 显然在尝试从历史记录中删除版本控制时真的搞砸了 table。

如果不为每个 table 单独指定查询，我应该怎么做？

Answer 1

我通过使用 Vim 宏为我的每个表创建相同的查询解决了这个问题。它看起来很丑陋，但实际上实施起来非常快：

ALTER TABLE dbo.tbl_Foo1 SET (SYSTEM_VERSIONING = OFF);
ALTER TABLE dbo.tbl_Foo2 SET (SYSTEM_VERSIONING = OFF);
ALTER TABLE ...

ALTER TABLE dbo.tbl_Foo1 NOCHECK CONSTRAINT ALL;
ALTER TABLE dbo.tbl_Foo2 NOCHECK CONSTRAINT ALL;
ALTER TABLE ...

DELETE FROM dbo.tbl_Foo1;
DELETE FROM dbo.tbl_Foo2;
DELETE FROM ...

DELETE FROM dbo.tbl_Foo1_history;
DELETE FROM dbo.tbl_Foo2_history;
DELETE FROM ...

DBCC CHECKIDENT ('[tbl_Foo1]', RESEED, 0);
DBCC CHECKIDENT ('[tbl_Foo2]', RESEED, 0);
DBCC CHECKIDENT ...

DBCC CHECKIDENT ('[tbl_Foo1_history]', RESEED, 0);
DBCC CHECKIDENT ('[tbl_Foo2_history]', RESEED, 0);
DBCC CHECKIDENT ...

ALTER TABLE dbo.tbl_Foo1 WITH CHECK CHECK CONSTRAINT ALL;
ALTER TABLE dbo.tbl_Foo2 WITH CHECK CHECK CONSTRAINT ALL;
ALTER TABLE ...

ALTER TABLE dbo.tbl_Foo1 SET (SYSTEM_VERSIONING = ON (HISTORY_TABLE = dbo.tbl_Foo1_history));
ALTER TABLE dbo.tbl_Foo2 SET (SYSTEM_VERSIONING = ON (HISTORY_TABLE = dbo.tbl_Foo2_history));
ALTER TABLE ...