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IBM DB2 9.7 SQL Procedure Developer Sample Questions:

1. Which SQL procedure declaration is coded correctly?

A) CREATE PROCEDURE myproc(IN salary DOUBLE, OUT commission DOUBLE)
BEGIN
DECLARE EXIT HANDLER FOR SQLEXCEPTION
SET commission = 0;
DECLARE my_cur CURSOR FOR SELECT * FROM employee;
DECLARE a DOUBLE;
SET a = .06 * salary;
SET commission = a;
END
B) CREATE PROCEDURE myproc(IN salary DOUBLE, OUT commission DOUBLE)
BEGIN
DECLARE EXIT HANDLER FOR SQLEXCEPTION
SET commission = 0;
DECLARE a DOUBLE;
DECLARE my_cur CURSOR FOR SELECT * FROM employee;
SET a = .06 * salary;
SET commission = a;
END
C) CREATE PROCEDURE myproc(IN salary DOUBLE, OUT commission DOUBLE)
BEGIN
DECLARE a DOUBLE;
DECLARE my_cur CURSOR FOR SELECT * FROM employee;
DECLARE EXIT HANDLER FOR SQLEXCEPTION
SET commission = 0;
SET a = .06 * salary;
SET commission = a;
END
D) CREATE PROCEDURE myproc(IN salary DOUBLE, OUT commission DOUBLE)
BEGIN
DECLARE a DOUBLE;
DECLARE EXIT HANDLER FOR SQLEXCEPTION
SET commission = 0;
DECLARE my_cur CURSOR FOR SELECT * FROM employee;
SET a = .06 * salary;
SET commission = a;
END

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

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

3. What is the correct order for declarations in a compound statement defined by BEGIN and END?

A) variable, condition, handler, cursor
B) variable, cursor, handler, condition
C) variable, cursor, condition, handler
D) variable, condition, cursor, handler

4. When you right-click a SQL procedure in the Data Source Explorer of IBM Data Studio and select Drop from the options menu, what happens?

A) The SQL procedure is temporarily hidden in the Data Source Explorer view.
B) The SQL procedure is removed from the data development project.
C) The SQL procedure is dropped from the database and removed from the data development project.
D) The SQL procedure is dropped from the database.

5. If the following SQL statements were executed in the order shown: What would be the values of RET_CODE1 and RET_CODE2 after executing the SIZEPRINTER procedure?

A) 100 , 1
B) 123, 123
C) 100, 0
D) 100, 100

Solutions: