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IF EXISTS(SELECT * FROM sys.procedures WHERE name=‘usp_wait30s‘)
BEGIN
DROP PROC usp_wait30s
END
go
create PROC usp_wait30s
AS
BEGIN
PRINT CONVERT(VARCHAR(20),GetDate(),120)
WAITFOR delay ‘00:00:05‘
PRINT CONVERT(VARCHAR(20),GetDate(),120)
END
go
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原文地址：http://www.cnblogs.com/KingUp/p/5722440.html
