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When assessing the table structure of an acquired set of tables with data, accessing the validity of possible referential integrity constraints on foreign keys is (part of) the:

  • A.first step.
  • B.second step.
  • C.third step.
  • D.
    fourth step.

Answer: C

Correct answer: third step.

The assessment proceeds in order: first count the rows and examine the columns to see what is there, then determine the functional dependencies, primary keys and foreign keys, then assess whether the referential integrity constraints those foreign keys imply are actually satisfied by the data. The check comes third because it cannot be made until the foreign keys have been identified.

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