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IBM C2090-730 Exam Syllabus Topics:

IBM DB2 9 Family Fundamentals Sample Questions:

Question 1

Given the following statements:
CREATE TABLE table1 (col1 INTEGER, col2 CHAR(3)); CREATE VIEW view1 AS
SELECT col1, col2 FROM table1 WHERE col1 < 100 WITH LOCAL CHECK OPTION;
Which of the following INSERT statements will execute successfully?

A. INSERT INTO view1VALUES(100, 'abc')
B. INSERT INTO view1VALUES(100, abc)
C. INSERT INTO view1VALUES(50, 'abc')
D. INSERT INTO view1 VALUES (50,abc)

Question 2

A table contains a list of all seats available at a football stadium. A seat consists of a section number, a seat number, and whether or not the seat has been assigned. A ticket agent working at the box office generates a list of all unassigned seats. When the agent refreshes the list, it should only change if another agent assigns one or more unassigned seats. Which of the following is the best isolation level to use for this application?

A. Uncommitted Read
B. Read Stability
C. Repeatable Read
D. Cursor Stability

Question 3

If the following SQL statements are executed in the order shown:
CREATE TABLE orders (order_num INTEGER NOT NULL, buyer_name VARCHAR(35), amount NUMERIC(5,2));
CREATE UNIQUE INDEX idx_orderno ON orders (order_num);
Which of the following describes the resulting behavior?

A. Duplicate ORDER_NUM values are allowed; no other index can be created for the ORDERS table that reference the ORDER_NUM column
B. Every ORDER_NUM value entered must be unique; whenever the ORDERS table is queried rows should be displayed in order of increasing ORDER_NUM values
C. Every ORDER_NUM value entered must be unique; whenever the ORDERS table is queried rows will be displayed in no particular order
D. Every ORDER_NUM value entered must be unique; no other index can be created for the ORDERS table that reference the ORDER_NUM column

Question 4

If the following SQL statements are executed:
CREATE TABLE make (makeid SMALLINT NOT NULL PRIMARY KEY,
make VARCHAR(25));
CREATE TABLE model (modelid SMALLINT,
model VARCHAR(25),
makeid SMALLINT,
CONSTRAINT const1 FOREIGN KEY (makeid)
REFERENCES make(makeid) ON DELETE RESTRICT);
And each table created is populated as follows:
MAKE
MAKEID MAKE
1 Ford 2 Chevrolet 3 Toyota
MODEL
MODELID MODEL MAKEID
1 Mustang 1 2 Escort 1 3 Malibu 2 4 Camry 3
If the following SQL statement is executed:
DELETE FROM make WHERE makeid = 1
What is the total number of rows that will be deleted?

A. 1
B. 2
C. 0
D. 3

Question 5

Given the following CREATE TABLE statement:
CREATE TABLE EMPLOYEE
(EMPNO CHAR(3) NOT NULL,
FIRSTNAME CHAR(20) NOT NULL,
MIDINIT CHAR(1),
LASTNAME CHAR(20) NOT NULL,
SALARY DECIMAL(10, 2))
Which of the following will retrieve the rows that have a missing value in the MIDINIT column?

A. SELECT * FROM employee WHEREmidinit IS NULL
B. SELECT * FROM employee WHEREmidinit = " "
C. SELECT * FROM employee WHEREmidinit = NULL
D. SELECT * FROM employee WHEREmidinit = ' '

Solutions: