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SQLServer与Access常用SQL函数区别
简介SQLServer Access CASE...WHEN... IIF() SUBSTRING() MID() ISNULL() IIF(IS NULL) SELECT *,IIf([State]=1,'√','×') as StateTag FROM Leave order by id desc
SQLServer Access
CASE...WHEN... IIF()
SUBSTRING() MID()
ISNULL() IIF(IS NULL)
SELECT *,IIf([State]=1,'√','×') as StateTag FROM Leave order by id desc
SELECT IIf([CateID] = 1, "文档"),IIf([CateID] = 2, "视频"),IIf([CateID] = 3, "音频") FROM File
CASE...WHEN... IIF()
SUBSTRING() MID()
ISNULL() IIF(IS NULL)
SELECT *,IIf([State]=1,'√','×') as StateTag FROM Leave order by id desc
SELECT IIf([CateID] = 1, "文档"),IIf([CateID] = 2, "视频"),IIf([CateID] = 3, "音频") FROM File