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Oracle9i program with pl/sql Sample Questions:

1. Which two statements about functions are true? (Choose two.)

A) A stored function increases efficiency of queries by performing functions on the server rather than in the application
B) From SOL*Plus, a function can be executed by giving the command EXECUTE functionname;
C) A function must have a return statement in its body to execute successfully
D) Client-side functions can be used in SOL statements
E) A stored function that is called from a SOL statement can return a value of any PL/SOL variable data type

2. You have an AFTER UPDATE row-level on the table EMP. The trigger queries the EMP table and inserts the updating user's information into the AUDIT_TABLE.
What happens when the user updates rows on the EMP table?

A) A runtime error occurs. The update on the EMP table does not take place, but the insert into the AUDIT_TABLE occurs.
B) A compile time error occurs.
C) A runtime error occurs. The effect of trigger body and the triggering statement are rolled back.
D) A runtime error occurs. The effect of trigger body is rolled back, but the update on the EMP table takes place.
E) The trigger fires successfully. The update on the EMP table occurs, and data is inserted into theAUDIT_TABLE table.

3. Examine this code:
CREATE OR REPLACE PACKAGE comm_package
IS
g_comm NUMBER := 10;
PROCEDURE reset_comm(p_comm IN NUMBER);
END comm_package;
/
User Jones executes the following code at 9:01am: EXECUTE comm_package.g_comm := 15
User Smith executes the following code at 9:05am: EXECUTE comm_paclage.g_comm := 20
Which statement is true?

A) g_comm has a value of 20 at 9:06am for both Jones and Smith.
B) g_comm has a value of 15 at 9:06am for Jones.
C) g_comm has a value of 10 at 9:03am for both Jones and Smith
D) g_comm has a value of 15 at 9:06am for Smith.
E) g_comm has a value of 15 at 9:03 am for both Jones and Smith.
F) g_comm has a value of 10 at 9:06am for both Jones and Smith.

4. Which two tables or views track object dependencies? (Choose two)

A) USER_DEPTREE
B) USER_DEPENDENCIES
C) IDEPTREE
D) USER_DEPENDS
E) USER_IDEPTREE

5. Which table should you query to determine when your procedure was last compiled?

A) USER_PROCS
B) USER_OBJECTS
C) USER_PLSQL_UNITS
D) USER_PROCEDURES

Solutions: