Discussion
The cost of reading and writing temporary files while evaluating a query can be reduced by
Answer: B
Correct answer: pipelining
Without pipelining each operation writes its whole result to a temporary file for the next to read. Pipelining passes each tuple straight from one operation to the next as it is produced, so the intermediate results are never written to disk at all.
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