Tag: databases

Quizzes (243) Questions (4862)

Questions Related to databases

Multiple choice technology databases

Local procedure A calls remote procedure B. Procedure B was compiled at 8 A.M. Procedure A was modified and recompiled at 9 A.M. Remote procedure B was later modified and recompiled at 11 A.M. The dependency mode is set to TIMESTAMP. What happens when procedure A is invoked at 1 P.M?

  1. There is no affect on procedure A and it runs successfully

  2. Procedure B is invalidated and recompiles when invoked.

  3. Procedure A is invalidated and recompiles for the first time it is invoked.

  4. Procedure A is invalidated and recompiles for the second time it is invoked
Reveal answer Fill a bubble to check yourself
D Correct answer
Multiple choice technology databases

Examine this procedure: CREATE OR REPLACE PROCEDURE DELETE_PLAYER (V_ID IN NUMBER) IS BEGIN DELETE FROM PLAYER WHERE ID = V_ID; EXCEPTION WHEN STATS_EXITS_EXCEPTION THEN DBMS_OUTPUT.PUT_LINE (‘cannot delete this player, child records exist in PLAYER_BAT_STAT table’); END; What prevents this procedure from being created successfully?

  1. A comma has been left after the STATS_EXIST_EXCEPTION exception.

  2. The STATS_EXIST_EXCEPTION has not been declared as a number

  3. The STATS_EXIST_EXCEPTION has not been declared as an exception

  4. Only predefined exceptions are allowed in the EXCEPTION section.
Reveal answer Fill a bubble to check yourself
C Correct answer
Full explanation
Multiple choice technology databases

Which of the following is a characteristic of a sequence?

  1. A sequence will never generate duplicate values. b.The MAXVALUE of a sequence can be equal to the MINVALUE. c.It is not possible to create a sequence that generates a constant since the INCREMENT value must be greater than zero.

  2. The MAXVALUE of a sequence can be equal to the MINVALUE

  3. It is not possible to create a sequence that generates a constant since the INCREMENT value must be greater than zero.

  4. When a sequence cycles back to either the MAXVALUE or MINVALUE, it will always be equal to the specified value of either of these two boundaries.
Reveal answer Fill a bubble to check yourself
B Correct answer
Full explanation