Usages of
select ud.username as attribute6 from usermgmt_master um inner join userdetails ud on um.userid=ud.userid and ud.userstatus = 0 where um.telephonenumber <> '' and um.telephonenumber=(select ad1.assetvalue from assetdetails ad inner join assetdetails ad1 on ad.assetid=ad1.assetid where ad.itemtypeid=20009 and ad.itemdetailsid=163
and ad1.itemdetailsid=166 and ad.assetvalue='120201 -N1-MVB-Patna') limit 1