SQL Practice Test 23
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The MCQs: Recursive queries can be used to express; "Frequently Asked Questions in Computer Science Interview" App (Android, iOS) with answers: Prepared closure; Embedded closure; Callable closure; Transitive closure; for online computer engineering classes. Solve sql questions and answers, Google eBook to download free sample for top computer science schools in the world.
SQL MCQ: Frequently Asked Questions in Computer Science Interview PDF Download - 23
Recursive queries can be used to express
- Embedded closure
- Prepared closure
- Callable closure
- Transitive closure
The output generated by the boolean expression 'False and unknown' is
- True
- False
- Unknown
- Null
The use of SQL keyword distinct is not allowed to be called in combination of
- Avg(*)
- Max(*)
- Sum(*)
- Count(*)
Correct SQL command to drop some relation from the database is
- Drop about *example*
- Drop from *example*
- Delete from *example*
- Delete about *example*
A SQL clause that does not support partitioning, is called
- Limit
- Having
- Order by
- Group by
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Database Management System Practice Questions
- Example of non dense index is
- Memory which loses contents because of power cut is classified as
- Type of legacy data model in which related records are represented by each hierarchy in tree structure is classified as
- For a three-schema architecture, there is strict partition between external, internal and conceptual level and language used in this structure is
- Files that can fit in available buffer space in phase of external sorting must be read into
Frequently Asked Questions in Computer Science Interview Practice Tests
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