DataBase Management System

DataBase Management System RDBMS

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Q: The _______ operator takes the results of two queries and returns only rows that appear in both result sets.  

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Q 1: A relational database consists of a collection of

  • ATables
  • BFields
  • CRecords
  • DKeys

Q 2: A ________ is a pictorial depiction of the schema of a database that shows the relations in the database, their attributes, and primary keys and foreign keys.

  • ASchema diagram
  • BRelational algebra
  • CDatabase diagram
  • DSchema flow

Q 3: The _______ operator takes the results of two queries and returns only rows that appear in both result sets.

  • AUnion
  • BIntersect
  • CDifference
  • DProjection

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