Official answer key is not available for this question yet.
Studying seriously for GATE CSE?
Keep browsing free. Pro unlocks the paid study loop: explanations, topic mastery, mistake notebook, and custom PYQ drills.
See GATE CSE betaOpen notebookGATE 2021Set 1PYQNATanswer pendingexplanationmedium
Database Management System · Query Processing
Concept intelligence
Jump into a concept drill from this question.
Recurring concept
See all 7 →Query Processing has appeared in GATE CSE & IT 7 times across 5 years (1998, 2006, 2007, 2014, 2021).
More questions on Query Processing
See all →- 2014 QWhat is the optimized version of the relation algebra expression $$\pi_{A1}(\pi_{A2}(\sigma_{F1}(\sigma_{F2}(r...
- 2014 QConsider a join (relation algebra) between relations r(R) and s(S) using the nested loop method. There are 3 b...
- 2007 QConsider the following relation schemas : b-Schema = (b-name, b-city, assets) a-Schema = (a-num, b-name, bal)...
- 2007 QConsider a selection of the form σ A ≤ 100(r), where r is a relation with 1000 tuples. Assume that the attribu...
- 2006 QConsider a database with three relation instances shown below. The primary keys for the Drivers and Cars relat...
- 1998 QWhich of the following query transformations (i.e. replacing the l.h.s. expression by the r.h.s. expression) i...
∑ has math
relational algebraselectivitysize estimationprobability