Database Systems Practice Test 245
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The Quiz: The technique that modifies the has function by splitting and coalescing buckets as the database grows and shrinks is called; "Bitmap Indices" App Download (Free) with answers: Extendable hashing; Modifiable hashing; Dynamic hashing; Variable hashing; for computer and information science. Learn Indexing and Hashing Questions and Answers, Apple eBook to download free sample to learn online training courses.
Bitmap Indices Questions and Answers PDF Download: MCQ 245
The technique that modifies the has function by splitting and coalescing buckets as the database grows and shrinks is called
- Modifiable hashing
- Extendable hashing
- Dynamic hashing
- Variable hashing
Database relations can also be updated through
- Locators
- Cursors
- Indices
- Addresses
The problem that something must happen in its entirety or not at all, is known as
- Data Isolation
- Data Integrity
- Data Inconsistency
- Data atomicity
SQL includes a feature for testing whether a subquery has any
- Attributes in results
- Tuples in results
- Instances in tuples
- Relation in result
The relational algebra is known to be a
- Procedural query language
- Structural query language
- Nonstructural query language
- Operational query language
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Computer Networks Practice Questions
- Protocol that has no flow or error control is called
- Connection-oriented protocols are used in virtual circuit approach for packet switching, such as in
- Relationship between amplitude and frequency can be represented by
- A Transmission Path (TP) is physical connection between an endpoint and a
- Frequency is expressed in
Bitmap Indices Practice Tests
- Authorization type, which allows reading, but not modification of data, is known as
- IBM developed techniques for having an efficient relational database model, in late
- Application programs are said to define physical data independence if they do not depend on
- Output of query:
select avg (salary)
from instructor
where dept name='Comp. Sci.'; - An E-R schema can define certain constraints to which contents of a database must