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我写过一个连接查询语句。那条语句再次返回多个(重复)行,即使我只有一条记录。使用多个连接重复记录
declare @BenefitClass int ;
set @BenefitClass = (select BenefitClass From HJOB where userid='d76c5000-69e0-461e-92e1-3cfe7590d098' and CompanyId =1629)
select @BenefitClass;
select
bve.EmployerContribution,
bhsac.CatchUpValue as CatchUpValue ,
bcl.Tier,
bcl.planYear,
bhsac.Ischecked,
isnull(bhsac.Value,0) as EmployeeContribute,
Id=(convert(varchar, bcl.Id) + '$' + convert(varchar, isnull(bhsac.Id, 0))) ,
bhsac.Value ,
bhsac.HSALmitId
from
dbo.benContributionStructure bcs
inner join dbo.benVariableElection bve on bcs.PlanInfoId = bve.PlanInfoId
inner join dbo.benBenefitContributionLimit bcl on bcs.SavingCategory = bcl.CategoryID
left outer join dbo.benBenefitHSACoverage bhsac on bcs.PlanInfoId = bhsac.planInfoId
and bcl.Id=bhsac.HSALmitId --and [email protected]
and bhsac.UserID='d76c5000-69e0-461e-92e1-3cfe7590d098' and bhsac.PlanInfoId=38044
left outer join dbo.benEmployeeContribution bec on bhsac.UserID = bec.UserId and bhsac.BenefitClassId = bec.BenefitClassId -- and bec.EnrollmentType !='Closed'
left outer join benOpenEnrollment oems on oems.ID = bec.OpenEnrollmentId and oems.EndDt > GETDATE()
where
bcs.PlanInfoId=38044 and bcl.Ischecked=1
and bcl.Tier !='CatchUp'
and bcl.CompanyId=1629
对于我得到的结果作为第二排为一式两份:
我能知道你为什么和CTE一起去? –
没有什么了不起的技巧..我只是使用** Distinct **来从CTE中获取数据。 –
是的,我了解有关截然不同的东西,让我确切地期望重现。但我对CTE感到困惑。我是初学者到SQL服务器。我没有从CTE获取相同的特征。 –