Computer Science · Database Management Systems
If ρi is the predicate used to construct fragment ri of relation r, the horizontal fragment of relation r is given by which of the following?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1πRi(r)
- 2σRi(r)
- 3πρi(r)
- 4σρi(r)✓
Correct answer
σρi(r)
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