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| Section | Objectives |
|---|---|
| Topic 1: Triggers | - DML triggers - Trigger timing and events |
| Topic 2: Control Structures | - Loops (FOR, WHILE, LOOP) - Conditional statements (IF, CASE) |
| Topic 3: Packages | - Advantages of packages - Package specification and body |
| Topic 4: SQL Fundamentals | - Basic SELECT statements and filtering - Joins and set operations |
| Topic 5: PL/SQL Fundamentals | - PL/SQL block structure - Variables and data types |
| Topic 6: Cursors | - Implicit and explicit cursors - Cursor FOR loops |
| Topic 7: Stored Procedures and Functions | - Creation and execution - Parameters and return values |
| Topic 8: Advanced PL/SQL Features | - Records and complex data types - Collections (associative arrays, nested tables) |
| Topic 9: Exception Handling | - User-defined exceptions - Predefined exceptions |
1. The creation of which database objects will cause a DDL trigger to fire? (Choose all that apply)
A) Cluster
B) Synonyms
C) Index
D) Dimensions
E) Database links
F) Function
G) Package
2. Which statement is true?
A) Stored functions can be called from the SELECT and WHERE clauses only.
B) Stored functions can increase the efficiency of queries by performing functions in the query rather than in the application.
C) Stored functions do not permit calculations that involve database links in a distributed environment.
D) Stored functions cannot manipulate new types of data, such as longitude and latitude.
3. Examine this code:
CREATE OR REPLACE PACKAGE metric_converter
IS
c_height CONSTRAINT NUMBER := 2.54;
c_weight CONSTRAINT NUMBER := .454;
FUNCTION calc_height (p_height_in_inches NUMBER)
RETURN NUMBER;
FUNCTION calc_weight (p_weight_in_pounds NUMBER)
RETURN NUMBER;
END;
/
CREATE OR REPLACE PACKAGE BODY metric_converter
IS
FUNCTION calc_height (p_height_in_inches NUMBER)
RETURN NUMBER
IS
BEGIN
RETURN p_height_in_inches * c_height;
END calc_height;
FUNCTION calc_weight (p_weight_in_pounds NUMBER)
RETURN NUMBER
IS
BEGIN
RETURN p_weight_in_pounds * c_weight
END calc_weight
END metric_converter;
/
CREATE OR REPLACE FUNCTION calc_height (p_height_in_inches NUMBER)
RETURN NUMBER
IS
BEGIN
RETURN p_height_in_inches * metric_converter.c_height;
END calc_height;
/
Which statement is true?
A) If you remove the package specification, then the package body is removed.
B) If you remove the package body, then the package specification and the stand alone stored function CALC_HEIGHT are removed.
C) If you remove the package specification, then the package body and the stand alone stored function CALC_HEIGHT are removed.
D) The stand alone function CALC_HEIGHT cannot be created because its name is used in a packaged function.
E) If you remove the stand alone stored function CALC_HEIGHT, then the METRIC_CONVERTER package body and the package specification are removed.
F) If you remove the package body, then the package specification is removed.
4. Which four triggering events can cause a trigger to fire? (Choose four)
A) A database is shut down or started up.
B) A user executes a JOIN statement that uses four or more tables.
C) A user executes a CREATE or an ALTER table statement.
D) A user executes a SELECT statement with an ORDER BY clause.
E) A specific error or any errors occurs.
F) A specific user or any user logs on or off.
5. How can you migrate from a LONG to a LOB data type for a column?
A) Use the UTL_MANAGE_LOMIGRATE procedure.
B) You cannot migrate from a LONG to a LOB date type for a column.
C) Use the DBMS_LOB.MIGRATE procedure.
D) Use the DBMS_MANAGE_LOB.MIGRATE procedure.
E) Use the ALTER TABLE command.
Solutions:
| Question # 1 Answer: A,B,C,F,G | Question # 2 Answer: B | Question # 3 Answer: A | Question # 4 Answer: A,C,E,F | Question # 5 Answer: E |
9i Internet Application Developer Oracle9i, Build Internet Applications I
9i Internet Application Developer Introduction to Oracle: SQL and PL/SQL
Develop pl/sql program units
9i Internet Application Developer Oracle9i, Build Internet Applications II
Oracle Database 11g: Performance Tuning
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