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IBM Assessment: DB2 9 Family Fundamentals Sample Questions:

1. Given the following requirements:
Create a table to contain employee data, with a unique numeric identifier automatically assigned when a row is added, has an EDLEVEL column that permits only the values 'C', 'H' and 'N', and permits inserts only when a corresponding value for the employee's department exists in the DEPARTMENT table.
Which of the following CREATE statements will successfully create this table?

A) CREATE TABLEemp (
empno SMALLINT NOT NULL GENERATED BY DEFAULT AS IDENTITY,
firstname VARCHAR(30) NOT NULL,
lastname VARCHAR(30) NOT NULL,
workdept CHAR(3),
edlevel CHAR(1),
CONSTRAINT emp_pk PRIMARY KEY (empno),
CONSTRAINT emp_workdept_fk FOREIGN KEY (workdept) REFERENCES department
(deptno),
CONSTRAINT edlevel_ck CHECK edlevel VALUES ('C','H','N')
);
B) CREATE TABLEemp (
empno SMALLINT NEXTVAL GENERATED ALWAYS AS IDENTITY,
firstname VARCHAR(30) NOT NULL,
lastname VARCHAR(30) NOT NULL,
workdept CHAR(3) NOT NULL,
edlevel CHAR(1),
PRIMARY KEY emp_pk (empno),
FOREIGN KEY emp_workdept_fk ON (workdept) REFERENCES department (deptno),
CHECK edlevel_ck VALUES (edlevel IN ('C','H','N')),
);
C) CREATE TABLEemp (
empno SMALLINT NOT NULL GENERATED BY DEFAULT AS IDENTITY,
firstname VARCHAR(30) NOT NULL,
lastname VARCHAR(30) NOT NULL,
workdept CHAR(3),
edlevel CHAR(1),
CONSTRAINT emp_pk PRIMARY KEY (empno),
CONSTRAINT emp_workdept_fk FOREIGN KEY (workdept) REFERENCES department
(deptno),
CONSTRAINT edlevel_ck CHECK (edlevel IN ('C','H','N'))
);
D) CREATE TABLEemp (
empno SMALLINT NEXTVAL GENERATED BY DEFAULT AS IDENTITY,
firstname VARCHAR(30) NOT NULL,
lastname VARCHAR(30) NOT NULL,
workdept CHAR(3) NOT NULL,
edlevel CHAR(1) CHECK IN ('C','H','N')),
CONSTRAINT emp_pk PRIMARY KEY (empno),
CONSTRAINT emp_workdept_fk FOREIGN KEY department (deptno) REFERENCES
(workdept)
);

2. While attempting to connect to a database stored on an iSeries server from a Windows client, the
following message was displayed:
SQL1013N The database alias name or database name "TEST_DB" could not be found.
Which of the following actions can be used to help determine why this message was displayed?

A) Execute the LIST DCS DIRECTORY command on the client; look for an entry for the TEST_DB database
B) Execute the LIST REMOTE DATABASES command on the client; look for an entry for the TEST_DB database
C) Execute the LIST REMOTE DATABASES command on the server; look for an entry for the TEST_DB database
D) Execute the LIST DCS DIRECTORY command on the server; look for an entry for the TEST_DB database

3. After the following SQL statement is executed: GRANT ALL PRIVILEGES ON TABLE employee TO USER user1
Assuming user USER1 has no other authorities or privileges, which of the following actions is user USER1 allowed to perform?

A) Drop an index on the EMPLOYEE table
B) Drop the EMPLOYEE table
C) Grant all privileges on the EMPLOYEE table to other users
D) Alter the table definition

4. The EMPLOYEE table contains the following information:
EMPNO NAME WORKDEPT
101 SAM A11 102 JOHN C12 103 JANE 104 PAT Remote 105 ANNE 106 BOB A11
The MANAGER table contains the following information:
MGRID NAME DEPTNO EMPCOUNT
1 WU B01 2 JONES A11 3 CHEN - 4 SMITH - 5 THOMAS C12
After this statement is executed:
UPDATE manager m SET empcount = (SELECT COUNT(workdept) FROM employee e WHERE workdept=m.deptno)
What is the result of the following query?
SELECT mgrid, empcount FROM MANAGER WHERE empcount IS NOT NULL ORDER BY mgrid

A) MGRID EMPCOUNT ----- -------- 1 0 22 5 1
B) MGRID EMPCOUNT ----- -------- 1 3 2 33 3 4 3 5 3
C) MGRID EMPCOUNT ----- -------- 1 0 22 3 0 4 0 5 1
D) MGRID EMPCOUNT ----- -------- 1 0 22 3 2 4 2 5 1

5. Which of the following tasks can NOT be performed using the Developer Workbench?

A) Develop and run XML queries
B) Develop and debug a user-defined data type
C) Develop and debug an SQL stored procedure
D) Develop and debug a user-defined function

Solutions: