摘要:
if not exists( select 1 from dbo.syscolumns s where name ='yourColumn' and id = object_id(N'YourTable')) begin alter table YourTable add yourColumn ColumnType end 阅读全文
posted @ 2006-06-08 12:28 C#Hunter 阅读(335) 评论(3) 推荐(0) 编辑
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