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IBM DB2 9.7 SQL Procedure Developer Sample Questions:

1. Given the following SQL:

Which statement is incorrect?

A) The cursor declaration requires the WITH RETURN TO CALLER clause in order to return a result set.
B) The procedure declaration requires the DYNAMIC RESULT SETS 1 clause in order to return a result set.
C) The cursor declaration requires the WITH RETURN clause in order to return a result set.
D) The cursor declaration requires the WITH RETURN TO CLIENT clause in order to return a result set.

2. Which code fragment illustrates the proper way to capture and save SQL error handler values so they can be used to control procedure logic?

A) DECLARE ERROR HANDLER FOR SQLEXCEPTION, SQLWARNING, NOT FOUND SET retcode = EXCEPTION;
B) DECLARE CONTINUE HANDLER FOR SQLEXCEPTION, SQLWARNING, NOT FOUND SET retcode = SQLCODE;
C) DECLARE ERROR HANDLING SQLEXCEPTION, SQLWARNING, NOT FOUND SET retcode = SQLERRN;
D) DECLARE ERROR HANDLING FOR SQLEXCEPTION, SQLWARNING, NOT FOUND SET retcode = SQLMSG;

3. In a SQL Procedure, rows_fetched is an integer variable and curEmp is a cursor variable of SELECT statement on a table. After opening the cursor curemp, which of the statement will determine the number of rows fetched?

A) SET rows_fetched = curEmp%CURSOR_ROWCOUNT
B) SET rows_fetched = CURSOR_ROWCOUNT(curemp)
C) SET rows_fetched = ROWCOUNT(curemp)
D) SET rows_fetched = curEmp%ROWCOUNT

4. Given the following code

What would be value of parm2 if the following proc1 called as call proc1(3, ?)?

A) 0
B) 10
C) 3
D) 8

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

A) 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
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_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
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

Solutions: