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Oracle 1Z0-147 Exam Syllabus Topics:

Oracle9i program with pl/sql Sample Questions:

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

A) You can pass parameters to packages.
B) You can achieve information hiding by making package constructs private.
C) The contents of packages can be shared by many applications.
D) A package is loaded into memory each time it is invoked.
E) Packages can be nested.

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. Procedure PROCESS_EMP references the table EMP.
Procedure UPDATE_EMP updates rows if table EMP through procedure PROCESS_EMP.
There is a remote procedure QUERY_EMP that queries the EMP table through the local
procedure PROCESS_EMP.
The dependency mode is set to TIMESTAMP in this session.
Which two statements are true? (Choose two)

A) If internal logic of procedure PROCESS_EMP is modified and successfully recompiles, QUERY_EMP gets invalidated and will recompile when invoked for the first time.
B) If the signature of procedure PROCESS_EMP is modified and successfully recompiles, the EMP table is invalidated.
C) If internal logic of procedure PROCESS_EMP is modified and successfully recompiles, UPDATE_EMP gets invalidated and will recompile when invoked for the first time.
D) If internal logic of procedure PROCESS_EMP is modified and successfully recompiles, QUERY_EMP gets invalidated and will recompile when invoked for the second time.
E) If the signature of procedure PROCESS_EMP is modified and successfully recompiles, UPDATE_EMP gets invalidated and will recompile when invoked for the first time.

4. Which statement is true?

A) Stored functions cannot manipulate new types of data, such as longitude and latitude.
B) Stored functions can increase the efficiency of queries by performing functions in the query rather than in the application.
C) Stored functions can be called from the SELECT and WHERE clauses only.
D) Stored functions do not permit calculations that involve database links in a distributed environment.

5. Which three statements are true regarding database triggers? (Choose three)

A) A database trigger needs to be executed explicitly whenever a particular event takes place.
B) A database trigger executes implicitly whenever a particular event takes place.
C) With a schema, triggers fire for each event for all users; with a database, triggers fire for each event for that specific user.
D) A database trigger is a PL/SQL block, C, or Java procedure associated with a table, view, schema, or the database.
E) A database trigger fires whenever a data event (such as DML) or system event (such as logon, shutdown) occurs on a schema or database.

Solutions: