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Oracle9i program with pl/sql Sample Questions:

1. You need to disable all triggers on the EMPLOYEES table.Which command accomplishes this?

A) ALTER TABLE employees DISABLE ALL TRIGGERS;
B) ALTER employees DISABLE ALL TRIGGERS;
C) None of these commands; you cannot disable multiple triggers on a table in one command.
D) ALTER TRIGGERS ON TABLE employees DISABLE;

2. You need to create a DML trigger. Which five pieces need to be identified? (Choose five)

A) Trigger body
B) Trigger name
C) System event
D) Table
E) Package body
F) DML event
G) Trigger timing
H) Package name

3. Which two does the INSTEAD OF clause in a trigger identify? (Choose two)

A) The table associated with the trigger.
B) The event associated with the trigger.
C) The view associated with the trigger.
D) The package associated with the trigger.
E) The statement level or for each row association to the trigger.

4. What is a condition predicate in a DML trigger?

A) A conditional predicate allows you to specify a SHUTDOWN or STARTUP condition in the trigger body.
B) A conditional predicate allows you to specify a WHEN-LOGGING-ON condition in the trigger body.
C) A conditional predicate means you use the NEW and OLD qualifiers in the trigger body as a condition.
D) A conditional predicate allows you to combine several DBM triggering events into one in the trigger body.

5. Examine the trigger heading:
CREATE OR REPLACE TRIGGER salary_check BEFORE UPDATE OF sal, job ON emp FOR EACH ROW
Under which condition does this trigger fire?

A) When the value of the SAL or JOB column in a row is updated in the EMP table.
B) When a row is inserted into the EMP table.
C) When any column other than the SAL and JOB columns in a row are updated in the EMP table.
D) Only when both values of the SAL and JOB columns in a row are updated together in the EMP table.

Solutions: