select * from XPipeSpecContainsPartSpecs
select * from JDPipeSpec
select * from JDPipePartSpec

select * from JDPipeSpec j1
join XPipeSpecContainsPartSpecs j2 on j2.oidorigin = j1.oid
join JDPipePartSpec j3 on j3.Oid=j2.OidDestination

select j1.SpecName,j3.ShortCode,j3.OptionCode,j3.FirstSizeFrom,j3.FirstSizeTo,j3.SecondSizeFrom,j3.SecondSizeTo,j3.CommodityCode from JDPipeSpec j1
join XPipeSpecContainsPartSpecs j2 on j2.oidorigin = j1.oid
join JDPipePartSpec j3 on j3.Oid=j2.OidDestination


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