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MySQL Division operator

MySQL Division operator. (SxT1)-R=>Select * from TT where (Essn,Pno) not in (select Essn,Pno from ssn_pno);//TT=SxT1; ssn_pno=R; T2<= π Y ( (SxT1)-R) T<=T1-T2=>select distinct Essn from T1 where Essn not in (select Essn from T2);.

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MySQL Division operator

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  1. MySQL Division operator • (SxT1)-R=>Select * from TT where (Essn,Pno) not in (select Essn,Pno from ssn_pno);//TT=SxT1; ssn_pno=R; • T2<=πY((SxT1)-R) • T<=T1-T2=>select distinct Essn from T1 where Essn not in (select Essn from T2);

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