GATE | Quiz for Sudo GATE 2021 | Question 4

Consider the following statements regarding minimum number of table required in relational algebra for converting ER diagram with cardinality and participation. 1. If there are only Partial participations:

One-One: 2 Tables, Merge Relation to any of the side.
Many-One or One-Many: 2 Tables, Merge Relation to Many side.
Many-Many: 3 tables (separate table for relation)

2. Any one of the side has full participation:

Full participation on Many Side: 2 Tables
Full Participation on one side: 1 Table

3. Both Side full participations:

Always one table irrespective of Cardinality.

Note - This question is multiple select questions (MSQ).

(A)

Statement 1 is correct

(B)

Statement 2 is correct

(C)

Statement 3 is correct

(D)

All 1, 2, and 3 are false.

Answer

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