Question: 1. Given R1 and R2 compute if possible: R1 ID A B R2 ID B D E 0 AO BO 0 BO DO EO

1. Given R1 and R2 compute if possible: R1 ID A B

1. Given R1 and R2 compute if possible: R1 ID A B R2 ID B D E 0 AO BO 0 BO DO EO 1 A1 B1 2 B99 D2 E2 2 A2 B3 3 B3 D3 E3 R1UR2 (union): R1xR2 (Cartesian product): R1MR2 (natural join): R1MR2 on R 1.ID=R2.ID (left outer join):

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