GATE 1992
Which relational algebra operation returns all tuples belonging to relation R, relation S, or both, removing duplicates?
Related Database Management PYQs
In SQL, which clause is evaluated immediately after the WHERE clause during logical query processing?
The project operator (π) in relational algebra is used for:
A dense index has an index entry for:
Lossless-join decomposition of a relation schema R into R1 and R2 guarantees that:
Let P, Q, R and S be the attributes of a relation in a relational schema. Let X → Y indicate functional dependency in the context …
In the context of relational database normalization, which of the following statements is/are true?
Free account benefits
Turn practice into measurable progress
Public PYQs and reference pages stay free. Sign in when you want GATEverse to remember what you studied and guide what to practise next.
Saved progressKeep answers, mock results and completion history across devices.
Adaptive practiceGet questions matched to your recent accuracy and difficulty level.
Bookmarks and notesBuild a personal revision list and record why a question was difficult.
Performance insightsSee weak subjects, accuracy trends, streaks and exam readiness.