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CSE :: Database System 2 - CS

  1. Indexes are created to enforce uniqueness on columns and to enable fast retrieval by column values.

  2. A.

     True

    B.

     False


  3. Money is defined in Oracle with the Currency data type.

  4. A.

     True

    B.

     False


  5. The default extension for SQL*Plus is .sql.

  6. A.

     True

    B.

     False


  7. The left-leaning slash tells Oracle to execute whatever statement is in the buffer.

  8. A.

     True

    B.

     False


  9. Oracle maintains a System Change Number (SCN) which is a database-wide value that is incremented by Oracle whenever database changes are made.

  10. A.

     True

    B.

     False


  11. The semicolon terminates a SQL statement (and executes it).

  12. A.

     True

    B.

     False


  13. SQL*Plus is a text editor.

  14. A.

     True

    B.

     False


  15. When you type Start FILENAME, the statement in your file will be executed automatically.

  16. A.

     True

    B.

     False


  17. You can check on the status of tables with the DESCRIBE or DESC command.

  18. A.

     True

    B.

     False


  19. Oracle directly supports the definition of surrogate keys.

  20. A.

     True

    B.

     False