SELECT
-- TOP 999999
id = IDENTITY(int, 1, 1) INTO she123 FROM syscolumns a, syscolumns b id = IDENTITY(int,
-- TOP 999999
id = IDENTITY(int, 1, 1) INTO she123 FROM syscolumns a, syscolumns b id = IDENTITY(int,
阅读背景：
优化下sql 语句 执行效率太慢了
来源：互联网
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