IBM C2090-730 Test Passed : DB2 9 Family Fundamentals

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IBM C2090-730 Exam Syllabus Topics:

IBM DB2 9 Family Fundamentals Sample Questions:

Question 1

Given the following statement:
SELECT hyear, AVG(salary)
FROM (SELECT YEAR(hiredate) AS hyear, salary
FROM employee WHERE salary > 30000)
GROUP BY hyear
Which of the following describes the result if this statement is executed?

A. The statement will return the year and average salary for all years that any employee had a salary greater than $30,000.
B. The statement will return the year and average salary for all years that every employee hired had a salary greater than $30,000.
C. The statement will return the year and average salary for all employees that have a salary greater than $30,000, sorted by year.
D. The statement will return the year and average salary for all employees hired within a given year that have a salary greater than $30,000.

Question 2

Given the following statement:
CREATE TABLE tab1
(col1 SMALLINT NOT NULL PRIMARY KEY,
col2 VARCHAR(200) NOT NULL WITH DEFAULT NONE,
col3 DECIMAL(5,2) CHECK (col3 >= 100.00),
col4 DATE NOT NULL WITH DEFAULT)
Which of the following definitions will cause the CREATE TABLE statement to fail?

A. COL1
B. COL4
C. COL2
D. COL3

Question 3

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. 0
C. 2
D. 3

Question 4

Which of the following tools can make recommendations for indexes and/or MQTs to improve the performance of DB2 applications?

A. Performance Advisor
B. Configuration Assistant
C. Design Advisor
D. Visual Explain

Question 5

Given the following CREATE TABLE statement:
CREATE TABLE customer(custid INTEGER, info XML)
And the following INSERT statements:
INSERT INTO customer VALUES (1000,
'<customerinfo xmlns="http://custrecord.dat" custid="1000">
<name>John Doe</name>
<addr country="United States">
<street>25 East Creek Drive</street>
<city>Raleigh</city>
<state-prov>North Carolina</state-prov>
<zip-pcode>27603</zip-pcode>
</addr>
<phone type="work">919-555-1212</phone>
<email>[email protected]</email>
</customerinfo>');
INSERT INTO customer VALUES (1000,
'<customerinfo xmlns="http://custrecord.dat" custid="1001">
<name>Paul Smith</name>
<addr country="Canada">
<street>412 Stewart Drive</street>
<city>Toronto</city>
<state-prov>Ontario</state-prov>
<zip-pcode>M8X-3T6</zip-pcode>
</addr>
<phone type="work">919-555-4444</phone>
<email>[email protected]</email>
</customerinfo>');
What is the result of the following XQuery expression?
XQUERY declare default element namespace "http://custrecord.dat"; for
$info in db2-fn:xmlcolumn('CUSTOMER.INFO')/customerinfo where
$info/addr/state-prov="Ontario" return $info/name/text();

A. <customerinfo xmlns="http://custrecord.dat" custid="1001">Paul Smith</customerinfo>
B. <namexmlns="http://custrecord.dat">Paul Smith</name>
C. <customerinfo xmlns="http://custrecord.dat" custid="1001"><name xmlns="http://custrecord.dat">Paul Smith</name>
D. Paul Smith

Solutions: