PGCES-02 Web TestEngine demo

Select all that apply.

• A

  A view is created by 'DECLARE VIEW', and deleted by 'DROP VIEW'.

• B

  A view is a virtual table which does not exist.

• C

  A view is created to simplify complicated queries.

• D

  You can create a view with the same name as already existing tables.

• E

  A view only exists while the postmaster is running, and is deleted when the postmaster stops.