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IBM Assessment: DB2 9.7 SQL Procedure Developer Sample Questions:

1. A developer wants to code the following statements in an SQL procedure:

What order must these statements be coded in?

A) 2, 4, 3, 1
B) 3, 4, 2, 1
C) 4, 3, 2, 1
D) 1, 2, 3, 4

2. 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 (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
B) 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
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 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

3. Which procedure demonstrates the correct use of dynamic SQL?

A) CREATE PROCEDURE update_count5 (IN new_count INTEGER, IN item_code INTEGER)
BEGIN
DECLARE v_dynSQL VARCHAR(200);
DECLARE v_col_name VARCHAR(128);
SET v_col_name = 'item_number';
SET v_dynSQL = 'UPDATE stock SET quantity_on_hand=? WHERE ?=?';
PREPARE v_stmt1 FROM v_dynSQL;
EXECUTE v_stmt1 USING new_count, v_col_name, item_code;
END
B) CREATE PROCEDURE update_count1 (IN new_count INTEGER, IN item_code INTEGER)
BEGIN
DECLARE v_dynSQL VARCHAR(200);
SET v_dynSQL = 'UPDATE stock SET quantity_on_hand=? WHERE item_number=?';
PREPARE v_stmt1 FROM v_dynSQL;
EXECUTE v_stmt1 USING new_count, item_code;
END
C) CREATE PROCEDURE update_count4 (IN tab_name VARCHAR(128), IN col_name1
VARCHAR(128), IN col_name2 VARCHAR(128), IN
new_count INTEGER, IN item_code INTEGER)
BEGIN
DECLARE v_dynSQL VARCHAR(200);
SET v_dynSQL = 'UPDATE ? SET ?=? WHERE ?=?';
PREPARE v_stmt1 FROM v_dynSQL;
EXECUTE v_stmt1 USING tab_name, col_name1, new_count, col_name2, item_code;
END
D) CREATE PROCEDURE update_count2 (IN tab_name VARCHAR(128), IN new_count
INTEGER, IN item_code INTEGER)
BEGIN
DECLARE v_dynSQL VARCHAR(200);
SET v_dynSQL = 'UPDATE ? SET quantity_on_hand=? WHERE item_number=?';
PREPARE v_stmt1 FROM v_dynSQL;
EXECUTE v_stmt1 USING tab_name, new_count, item_code;
END

4. When considering authorization for CREATE OR REPLACE PROCEDURE statements, the authorization id must have:

A) ownership of the existing procedure
B) IMPLICIT_SCHEMA authority on the database
C) DBADM authority
D) group privileges on the table or view specified in the procedure

5. If table TAB1 were created as follows: CREATE TABLE tab1 (col1 INT NOT NULL); Which statement illustrates the proper way to define an anchor variable that references column COL1 in table TAB1?

A) DECLARE var1 ANCHOR DATA TYPE TO tab1.col1%TYPE
B) DECLARE var1 tab1.col1%TYPE
C) DECLARE var1 REFERENCES tab1.col1
D) DECLARE var1 ANCHOR DATA TYPE TO tab1.col1

Solutions: