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IBM Assessment: DB2 9 Family Fundamentals Sample Questions:
1. Given the following table:
EMPLOYEE
EMPID NAME INSTRUMENT
1 Jagger, Mick 01
2 Richards, Keith 02
3 Wood, Ronnie 02
4 Watts, Charlie 03
5 Jones, Darryl 04
6 Leavell, Chuck 05
If the following query is executed:
SELECT name,
CASE WHEN instrument = '01' THEN 'HARMONICA'
WHEN instrument = '02' THEN 'GUITAR'
WHEN instrument = '03' THEN 'DRUMS'
ELSE 'UNKNOWN'
END AS instrument
FROM employee
What will be the results?
A) NAME INSTRUMENT
Jagger, Mick HARMONICA Richards, Keith GUITAR Wood, Ronnie GUITAR Watts, Charlie DRUMS Jones, Darryl UNKNOWN Leavell, Chuck UNKNOWN
B) NAME INSTRUMENT
Jagger, Mick HARMONICA Richards, Keith GUITAR Wood, Ronnie GUITAR Watts, Charlie DRUMS Jones, Darryl 04 Leavell, Chuck 05
C) NAME INSTRUMENT
Jagger, Mick HARMONICA Richards, Keith GUITAR Wood, Ronnie GUITAR Watts, Charlie DRUMS Jones, Darryl -Leavell, Chuck
D) NAME INSTRUMENT
Jagger, Mick HARMONICA Richards, Keith GUITAR Wood, Ronnie GUITAR Watts, Charlie DRUMS Jones, Darryl ERROR Leavell, Chuck ERROR
2. Given the following statements:
CREATE TABLE t1 (c1 INTEGER, c2 CHAR(5));
CREATE TABLE t1audit (user VARCHAR(20), date DATE, action
VARCHAR(20));
CREATE TRIGGER trig1 AFTER INSERT ON t1
FOR EACH ROW
MODE DB2SQL
INSERT INTO t1audit VALUES (CURRENT USER, CURRENT DATE,
'Insert');
If user USER1 executes the following statements:
INSERT INTO t1 VALUES (1, 'abc');
INSERT INTO t1 (c1) VALUES (2);
UPDATE t1 SET c2 = 'ghi' WHERE c1 = 1;
How many new records will be written to the database?
A) 2
B) 0
C) 4
D) 3
3. Which of the following tasks can NOT be performed using the Developer Workbench?
A) Develop and debug an SQL stored procedure
B) Develop and run XML queries
C) Develop and debug a user-defined data type
D) Develop and debug a user-defined function
4. Given the following queries:
SELECT c1 FROM tab1; SELECT c1 FROM tab2;
Which of the following set operators can be used to produce a result data set that contains only records that are not found in the result data set produced by each query after duplicate rows have been eliminated?
A) EXCEPT
B) MERGE
C) UNION
D) INTERSECT
5. Application A issues the following SQL statements within a single transaction using the
Uncommitted Read isolation level:
SELECT * FROM department WHERE deptno = 'A00';
UPDATE department SET mgrno = '000100' WHERE deptno = 'A00';
As long as the transaction is not committed, which of the following statements is FALSE?
A) Other applications running under the Uncommitted Read isolation level are allowed to read the updated row
B) Application A is not allowed to insert new rows into the DEPARTMENT table as long as the current transaction remains active
C) Application A is allowed to read data stored in another table, even if an Exclusive lock is held on that table
D) Other applications not running under the Uncommitted Read isolation level are prohibited from reading the updated row
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: C | Question # 3 Answer: C | Question # 4 Answer: B | Question # 5 Answer: B |




