Question 1 the relational set operators union intersect and, Ask an Expert

Programming

Question: 1. The relational set operators UNION, INTERSECT, and EXCEPT (MINUS) work properly only when the relations are union-compatible. What does union-compatible mean, and how would you check for this condition?

2. What is the difference between UNION and UNION ALL? Write the syntax for each.

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DBMS, Programming

Category:- DBMS
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