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IBM A2090-545 Exam Syllabus Topics:

IBM Assessment: DB2 9.7 SQL Procedure Developer Sample Questions:

1. 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_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_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

2. The CREATE OR REPLACE PROCEDURE statement is similar semantically to which of the following combined statements?

A) DROP and ALTER PROCEDURE
B) ALTER and CREATE PROCEDURE
C) UPDATE and CREATE PROCEDURE
D) DROP and CREATE PROCEDURE

3. Which statement is true about the data types VARCHAR and VARCHAR2?

A) The VARCHAR2 data type cannot be used in a database that has not been created in Oracle compatibility mode.
B) The VARCHAR data type cannot be used with a database that has been created in Oracle compatibility mode.
C) The VARCHAR2 data type treats empty strings as null; the VARCHAR data type treats empty strings as not null with zero length.
D) The VARCHAR2 data type length is limited to 2000 bytes; the VARCHAR data type length can be up to 32K.

4. Which tool can be used to get an Explain plan for all SQL statements used in a unit of work?

A) DB2 Command Center
B) Data Studio
C) db2exfmt
D) db2look

5. How is the FOR statement distinct from other conditional statements?

A) FOR statements are used to iterate over rows in a defined read-only result set.
B) FOR statements are evaluated at the completion of each iteration of the loop.
C) FOR statements have a terminating condition clause.
D) FOR statements are evaluated before each iteration of the loop.

Solutions: