Explore topic-wise MCQs in Database.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Database knowledge and support exam preparation. Choose a topic below to get started.

Explore topic-wise MCQs in Database.

CONJUNCTIVE_SELECTION_USING_ONE_INDEX._THIS_IS?$

If access paths are available on all the conditions of a disjunctive selection, each index is scanned for pointers to tuples that satisfy the individual condition. This is satisfied b?

The ___ algorithm scans each index for pointers to tuples that satisfy an individual condition?

The algorithm that uses a secondary ordered index to guide retrieval for comparison conditions involving <,‚Äö√Ñ√∂‚àö¬¢¬¨√ü,‚Äö√Ñ√∂‚àö¬¢‚Äö√Ñ¬¢, or > is$

The strategy can retrieve a single record if the equality condition is on a key; multiple records may be retrieved if the indexing field is not a key is

Which algorithm uses equality comparison on a key attribute with a primary index to retrieve a single record that satisfies the corresponding equality condition.

Search algorithms that use an index are referred to as

Index structures are referred to as __________ since they provide a path through which data can be located and accessed.

In a ____________ the system scans each file block and tests all records to see whether they satisfy the selection condition.

In query processing, the ___________ is the lowest-level operator to access data.