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IBM DB2 9.7 SQL Procedure Developer Sample Questions:

1. Click the Exhibit button.

Which statement correctly describes the result of the FOR loop shown in the exhibit?

A) FULLNAME is set to the last name of the employee, followed by a comma, the first name, a blank space, and the middle initial. Only the first value for FULLNAME is inserted into table TNAMES.
B) FULLNAME is set to the last name of the employee, followed by a comma, the first name, a blank space, and the middle initial for each row. Each value for FULLNAME is inserted into table TNAMES in alphabetical order.
C) FULLNAME is set to the last name of the employee, followed by a comma, the first name, a blank space, and the middle initial for each row. Each value for FULLNAME is inserted into table TNAMES.
D) FULLNAME is set to the last name of the employee, followed by a comma, the first name, a blank space, and the middle initial. Only the last value for FULLNAME is inserted into table TNAMES.

2. What is a reason to use SQL procedures in DB2?

A) to eliminate the need for testing
B) to move business logic rules into the database
C) to reduce code sharing
D) to use different programming languages

3. A developer needs to create a user-defined function that will return a list of employees who work in a particular department. Which statement will successfully create a function that meets this objective?

A) CREATE FUNCTION dept_employees (deptno CHAR(3)) RETURNS TABLE DYNAMIC RESULT SETS 1 LANGUAGE SQL READS SQL DATA DECLARE emp_info CURSOR WITH RETURN FOR SELECT empno, lastname AS l_name, firstnme AS f_name FROM employee WHERE employee.workdept = dept_employees.deptno OPEN emp_info; RETURN
B) CREATE FUNCTION dept_employees (deptno CHAR(3)) RETURNS TABLE (empno CHAR(6), l_name VARCHAR(15), f_name VARCHAR(12)) DYNAMIC RESULT SETS 1 LANGUAGE SQL READS SQL DATA DECLARE emp_info CURSOR WITH RETURN FOR SELECT empno, lastname AS l_name, firstnme AS f_name FROM employee WHERE employee.workdept = dept_employees.deptno OPEN emp_info; RETURN
C) CREATE FUNCTION dept_employees (deptno CHAR(3)) RETURNS TABLE (empno CHAR(6), l_name VARCHAR(15), f_name VARCHAR(12)) LANGUAGE SQL READS SQL DATA RETURN SELECT empno, lastname AS l_name, firstnme AS f_name FROM employee WHERE employee.workdept = dept_employees.deptno
D) CREATE FUNCTION dept_employees (deptno CHAR(3)) RETURNS TABLE LANGUAGE SQL READS SQL DATA RETURN SELECT empno, lastname AS l_name, firstnme AS f_name FROM employee WHERE employee.workdept = dept_employees.deptno

4. Which code fragment illustrates the proper way to perform error checking in SQL stored procedures?

A) ... BEGIN IF SQLCODE < 0 THEN RETURN -6786 END;
B) ...
IF SQLCODE < 0 THEN
RETURN -6786;
END IF;
...
C) ...
BEGIN
EXCEPTION < 0
ELSE;
NULL;
END;
...
D) ...
IF
EXCEPTION < 0
ELSE THEN;
NULL;
ENDIF;
...

5. Click the Exhibit button.

A user-defined function was created using the statement shown in the exhibit. Which additional option can be added to the CREATE FUNCTION statement to tell the optimizer that the function does not always return the same results for a given argument value?

A) NOT FENCED
B) NO EXTERNAL ACTION
C) NOT DETERMINISTIC
D) STATIC DISPATCH

Solutions: