Better example for MS SQL search by CAD Model name. You can use any instance or generic cadname
select mstr.CADName,* from wcuser.EPMDocument epm
inner join wcuser.EPMDocumentMaster mstr on mstr.idA2A2=epm.idA3masterReference
inner join wcuser.EPMContainedIn contain on contain.idA3A5=epm.idA2A2
inner join wcuser.EPMSepFamilyTable sep on contain.idA3B5=sep.idA2A2
where sep.idA3masterReference in (select sep.idA3masterReference from wcuser.EPMDocument epm
inner join wcuser.EPMDocumentMaster mstr on mstr.idA2A2=epm.idA3masterReference
inner join wcuser.EPMContainedIn contain on contain.idA3A5=epm.idA2A2
inner join wcuser.EPMSepFamilyTable sep on contain.idA3B5=sep.idA2A2
where (mstr.CADName='m5x15.prt'))