举例1：

使用该查询，得出iFavoriteID,iFavUserType ,cUser,iArticleID,dFavoriteTime五个字段的值:

SELECT iFavoriteID,
CASE WHEN iFavUserType = 0 THEN ‘新闻管理员’
WHEN iFavUserType = 1 THEN ‘商家’
WHEN iFavUserType = 2 THEN ‘会员’
WHEN iFavUserType = 3 THEN ‘未注册’
WHEN iFavUserType = 4 then ‘匿名’
END AS iFavUserType, cUser, iArticleID,
CONVERT(nvarchar(100), dFavoriteTime, 111) AS dFavoriteTime FROM dig_favorite

举例2：

SELECT CASE WHEN `MEMBERTYPE` =1
THEN ‘参赛队员’
ELSE ‘指导老师’
END FROM `tab_sign_member`
WHERE 1

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