GATE CSE 1992 - Relational Algebra | Hotels serve snacks that Rama likes | DBMS | Deepak Poonia

Описание: Relational Algebra Complete Summary & GATE PYQs -    • DBMS: Complete Summary & GATE Questions | ...  

GATE CSE 1992 | Question: 13b: https://gateoverflow.in/43581/gate-cs...
Suppose we have a database consisting of the following three relations:
The first indicates the hotels each customer visits, the second tells which snacks each hotel serves and last indicates which snacks are liked by each customer. Express the following query in relational algebra:

Print the hotels the serve the snack that customer Rama likes.

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