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sql表连接去重复查询

查询公司与公司最新刷新的一条信息

    select  t1.userid,t1.id,t1.title,t1.RegType,t1.Salary,t1.SubjectID,t1.RefreshTime,t2.name,t2.logo,t2.[address],t2.CreateTime     from info t1 inner join       companyinfo t2 on t1.userid=t2.id    where t1.id in     (        select top 1 info.id from info where userid = t1.userid order by refreshtime desc    )     and t1.userid in    (        select  distinct userid from PackageRecord where PackagePid=1 and getdate()<endtime    )

 

sql表连接去重复查询