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Which of the following operations is used for the union of bitmaps?

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in RDBMS by (118k points)
Which of the following operations is used for the union of bitmaps?

(a) Logical AND

(b) Logical OR

(c) Logical NOT

(d) Logical NOR

I got this question in a national level competition.

My query is from Bitmap Indices topic in portion Indexing and Hashing of RDBMS

1 Answer

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Best answer
Correct option is (b) Logical OR

Easiest explanation: The logical OR operation is used for the computation of the union of bitmaps. This is similar to the binary set union operation.

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