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In an E-R diagram, a weak entity set is identified by

1361Medium DSSSB TGT Computer Science 0 replies 1 views
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In an E-R diagram, a weak entity set is identified by

  • Aits own primary key alone
  • Bits partial key together with the primary key of its owner entity
  • Ca multivalued attribute
  • Da derived attribute
Correct answer: B

Explanation

A weak entity has no primary key of its own; it is identified by its partial (discriminator) key combined with the key of the identifying owner entity.
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