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Oracle9i program with pl/sql Sample Questions:
1. You have created a stored procedure DELETE_TEMP_TABLE that uses dynamic SQL to remove a table in your schema. You have granted the EXECUTE privilege to user A on this procedure.
When user A executes the DELETE_TEMP_TABLE procedure, under whose privileges are the operations performed by default?
A) Public privileges
B) User A cannot execute your procedure that has dynamic SQL.
C) SYS privileges
D) Your privileges
E) User A's privileges
2. Examine this package:
CREATE OR REPLACE PACKAGE pack_cur IS CURSOR c1 IS SELECT prodid FROM poduct ORDER BY prodid DESC; PROCEDURE proc1; PROCEDURE proc2; END pack_cur; /
CREATE OR REPLACE PACKAGE BODY pack_cur IS v_prodid NUMBER; PROCEDURE proc1 IS BEGIN OPEN c1;
LOOP
FETCH c1 INTO v_prodid;
DBMS_OUTPUT.PUT_LINE('Row is: ' || c1%ROWCOUNT);
EXIT WHEN c1%ROWCOUNT >= 3;
END LOOP;
END proc1;
PROCEDURE proc2 IS
BEGIN
LOOP
FETCH c1 INTO v_prodid;
DBMS_OUTPUT.PUT_LINE('Row is: ' ||c1%ROWCOUNT);
EXIT WHEN c1%ROWCOUNT >= 6;
END LOOP;
CLOSE c1;
END proc2;
END pack_cur;
/
The product table has more than 1000 rows. The SQL *Plus SERVEROUTPUT setting is turned
on in your session.
You execute the procedure PROC1 from SQL *Plus with the command:
EXECUTE pack_cur.proc1
What is the output in your session?
A) Row is: Row is: Row is:
B) Row is: 1 Row is: 2 Row is: 3
C) Row is: 4 Row is: 5 Row is: 6
D) ERROR at line 1:
3. Which statement is true?
A) Stored functions cannot manipulate new types of data, such as longitude and latitude.
B) Stored functions do not permit calculations that involve database links in a distributed environment.
C) Stored functions can be called from the SELECT and WHERE clauses only.
D) Stored functions can increase the efficiency of queries by performing functions in the query rather than in the application.
4. Which command must you issue to allow users to access the UPD_TEAM_STAT trigger on the TEAM table?
A) GRANT EXECUTE ON TEAM TO PUBLIC
B) GRANT SELECT, EXECUTE ON TEAM, UPD_TEAM_STAT TO PUBLIC;
C) GRANT SELECT,INSERT,UPDATE,DELETE ON UPD_TEAM_STAT TO PUBLIC;
D) GRANT SELECT,INSERT,UPDATE,DELETE ON TEAM TO PUBLIC;
5. 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 10 at 9:06am for both Jones and Smith.
B) g_comm has a value of 15 at 9:06am for Smith.
C) g_comm has a value of 20 at 9:06am for both Jones and Smith.
D) g_comm has a value of 10 at 9:03am for both Jones and Smith
E) g_comm has a value of 15 at 9:06am for Jones.
F) g_comm has a value of 15 at 9:03 am for both Jones and Smith.
Solutions:
Question # 1 Answer: D | Question # 2 Answer: B | Question # 3 Answer: D | Question # 4 Answer: D | Question # 5 Answer: E |