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Oracle 1Z0-147 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Database Triggers | 15% | - Creating and managing triggers
|
| PL/SQL Fundamentals | 15% | - Overview of PL/SQL
|
| Packages | 20% | - Advanced package features
|
| Error Handling and Exceptions | 10% | - Handling exceptions
|
| Control Structures | 15% | - Iterative statements
|
| Procedures and Functions | 20% | - Creating and invoking functions
|
| Managing Dependencies and Performance | 5% | - Object dependencies
|
Oracle9i program with pl/sql Sample Questions:
1. You have a table with the following definition:
CREATE TABLE long_tab
(id NUMBER);
long_col LONG)
You need to convert the LONG_COL column from a LONG data type to a LOB data type. Which
statement accomplish this task?
A) ALTER TABLE long_tab MODIFY (LONG_COL CLOB);
B) EXECUTE dbms_manage.lob.migrate(long_tab, long_col, clob)
C) EXECUTE utl_manage_lob.migrate(long_tab, long_col, clob)
D) EXECUTE utl_lob.migrate(long_tab, long_col, clob)
E) EXECUTE dbms_lob.migrate(long_tab, long_col, clob)
2. Which two dictionary views track dependencies? (Choose two)
A) DEPTREE_TEMPTAB
B) USER_SOURCE
C) USER_OBJECTS
D) DBA_DEPENDENT_OBJECTS
E) USER_DEPENDENCIES
F) UTL_DEPTREE
3. Examine this package specification:
CREATE OR REPLACE PACKAGE concat_all
IS
v_string VARCHAR2(100);
PROCEDURE combine (p_num_val NUMBER);
PROCEDURE combine (p_date_val DATE);
PROCEDURE combine (p_char_val VARCHAR2, p_num_val NUMBER);
END concat_all; /
Which overloaded COMBINE procedure declaration can be added to this package specification?
A) PROCEDURE combine (p_val_1 VARCHAR2, p_val_2 NUMBER;
B) PROCEDURE combine (p_no NUMBER);
C) PROCEDURE combine;
D) PROCEDURE concat_all
(p_num_val VARCHAR2, p_char_val NUMBER);
4. Examine this code:
CREATE OR REPLACE TRIGGER secure_emp BEFORE LOGON ON employees BEGIN IF (TO_CHAR(SYSDATE, 'DY') IN ('SAT', 'SUN')) OR (TO_CHAR(SYSDATE, 'HH24:MI') NOT BETWEEN '08:00' AND '18:00') THEN RAISE_APPLICATION_ERROR (-20500, 'You may insert into the EMPLOYEES table only during business hours.'); END IF; END; / What type of trigger is it?
A) This is an invalid trigger.
B) Application trigger
C) DML trigger
D) System event trigger
E) INSTEAD OF trigger
5. Examine this code:
CREATE OR REPLACE PROCEDURE set_bonus
(p_cutoff IN VARCHAR2 DEFAULT 'WEEKLY'
p_employee_id IN employees_employee_id%TYPE
p_salary IN employees_salary%TYPE,
p_bonus_percent IN OUT NUMBER DEFAULT 1.5,
p_margin OUT NUMBER DEFAULT 2,
p_bonus_value OUT NUMBER)
IS
BEGIN UPDATE emp_bonus SET bonus_amount =(p_salary * p_bonus_percent)/p_margin WHERE employee_id = p_employee_id; END set_bonus; /
You execute the CREATE PROCEDURE statement above and notice that it fails. What are two reasons why it fails? (Choose two)
A) The format parameter p_bonus_value is declared but is not used anywhere.
B) You cannot update a table using a stored procedure.
C) The declaration of the format parameter p_bonus_percent cannot have a DEFAULT clause.
D) The syntax of the UPDATE statement is incorrect.
E) The formal parameter p_cutoff cannot have a DEFAULT clause.
F) The declaration of the format parameter p_margin cannot have a DEFAULT clause.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A,E | Question # 3 Answer: C | Question # 4 Answer: A | Question # 5 Answer: C,F |
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