sql语句将查询的结果拼接成字符串
--方法1
DECLARE @STR VARCHAR(8000) SELECT @STR=ISNULL(@STR+",","")+userID FROM (SELECT DISTINCT userID FROM Users)AS T SELECT @STR AS NAME结果:
--方法2
declare @output varchar(8000) select @output = coalesce(@output + "," , "") + userid from Users print @output结果:
SELECT GROUP_CONCAT(userID) as id from Users
查询结果:
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