Algebra

Express Queries In Relational Algebra And Also Please

Question

Express queries in relational algebra and also please

explain .

Relational
Express Queries in Algebra
Database : .
Frequents ( Drinker , Box )
Serves (Baz , Beer )
Likes ( Dsinker , Bees )
1 .
Print the boss that serves a bees John
Smith likes :.
2 .
Drinkers that frequent at least one bar
that quot; Serve a beer John smith likes
3 .
Print Drinkers that frequent at least one
bay that selves a bees they like

Engineering Technology

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