Computer Science · Structured Query Language
Why is the EXCEPT (or MINUS) set operation less frequently utilized in high-throughput OLTP systems compared to other filtering methods?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Evaluating set-difference over large datasets is highly resource-intensive and costly.✓
- 2It requires participating tables to have completely different schemas.
- 3It automatically retains all duplicate records in the final output.
- 4It is not a part of standard ANSI SQL specifications.
Correct answer
Evaluating set-difference over large datasets is highly resource-intensive and costly.
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