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IBM A2090-545 Exam Syllabus Topics:

IBM Assessment: DB2 9.7 SQL Procedure Developer Sample Questions:

1. Which two statements are true with regards to nesting SQL procedures? (Choose two.)

A) An SQL procedure defined with the CONTAINS SQL clause can invoke an SQL procedure defined with the READS SQL DATA clause.
B) An SQL procedure defined with the CONTAINS SQL clause can invoke an SQL procedure defined with the NO SQL clause.
C) An SQL procedure cannot invoke procedures built in other languages (e.g., C, Java).
D) An SQL procedure can invoke the same SQL procedure more than once.
E) An SQL procedure defined with the CONTAINS SQL clause can invoke an SQL procedure defined with the MODIFIES SQL DATA clause.

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

A) 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
B) 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
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_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

3. Which statement correctly describes characteristics of external functions?

A) Transactions can be terminated within external functions.
B) All cursors opened within an external function should stay open until the database is quiesced.
C) External functions cannot return tables.
D) Scratchpads can be used to allocate dynamic memory required for multiple function invocations.

4. Given the following SQL:

Which of the following statements is true?

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

5. Given the following statements in an SQL procedure:

Which of the following assignment statements is valid?

A) SET c1 = VALUES (1, 2, 3);
B) SET VALUES (1, 2, 3) for CURSOR c1;
C) SET c1 = CURSOR FOR VALUES (1, 2, 3);
D) c1 = CURSOR VALUES (1, 2, 3);

Solutions: