Tag: databases

Quizzes (243) Questions (4862)

Questions Related to databases

Multiple choice technology databases

Suppose you are working in a test database where instance recovery takes a considerable amount of time. How can reduce the recovery time? (Choose two)

  1. By multiplexing the control files.

  2. By multiplexing the redo log files.

  3. By decreasing the size of redo log files.

  4. By configuring the Mean Time Recover (MTTR) to a lower value.

  5. By setting UNDO_RETENTION parameter to a higher value.
Reveal answer Fill a bubble to check yourself
C,D Correct answer
Full explanation
Multiple choice technology databases

CREATE OR REPLACE PACKAGE BODY COMPILE_THIS IS PROCEDURE A IS BEGIN G_VALUE := (‘HELLO WORLD’); END A; PROCEDURE B IS BEGIN C; DBMS_OUTPUT. PUT_LINE (‘PROCEDURE B CALLING C’); END B; PROCEDURE C IS BEGIN B; DBMS_OUTPUT. PUT_LINE (‘PROCEDURE C CALLING B’); END; END COMILE_THIS; / Procedure C is a local construct to the package. What happens when this package is compiled?

  1. It produces the output Procedure B calling C

  2. It produces the output Procedure C calling B

  3. It produces a compilation error because procedure C requires a forward declaration

  4. It produces a compilation error because procedure B requires a forward declaration.

  5. It produces a compilation error because identified g_value is not declared in procedure A
Reveal answer Fill a bubble to check yourself
C Correct answer
Full explanation