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