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PostgreSQL_CE

PGCES-02 · Question #81

Select two suitable statements about sequences.

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Question

Select two suitable statements about sequences.

Options

  • AA sequence always returns a 4-byte INTEGER type value, so the maximum value is
  • BA sequence is defined by 'CREATE SEQUENCE', and deleted by 'DROP SEQUENCE'.
  • CAlthough the "nextval" function is called during a transaction, it will have no effect if that
  • DA sequence always generates 0 or consecutive positive numbers.
  • EA sequence number can be set by calling the "setval" function.

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