Discussion
A file is organized so that the ordering of data records is the same as or close to the ordering of data entries in some index. Then that index is called
Answer: C
The index is called Clustered.
A clustered index is one whose order matches, or nearly matches, the physical order of the data records in the file. Range searches on it are efficient because matching records sit together on the disk.
An unclustered index has a different order from the data. Dense and sparse describe whether there is an index entry for every record or only for some, not how the order compares.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development