Computer Science · Relational Algebra
In relational algebra, why is the projection operator considered to be potentially lossy in terms of information cardinality or duplicate elimination?
- 1It inherently increases data redundancy across attributes
- 2It introduces mandatory NULL values into the relation
- 3It alters the underlying attribute data domains
- 4It automatically removes duplicate tuples from the resulting relation✓
Correct answer
It automatically removes duplicate tuples from the resulting relation
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Preparing for Computer Science?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Relational Algebra?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Computer Science · Relational Algebra