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IBM Assessment: DB2 9.7 SQL Procedure Developer Sample Questions:

1. 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

2. 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_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
C) 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
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

3. Which two statements are true when working with triggers? (Choose two.)

A) Triggers can be used with both tables and views.
B) Triggers can be used on Materialized Query Tables.
C) Triggers can be altered.
D) Triggers can be used to enforce data integrity rules.
E) Triggers can be used on Created Temporary Tables.

4. For which types of servers can you use IBM Data Studio to create and manage SQL procedures?

A) DB2 for LUW, DB2 for z/OS, Oracle
B) DB2 for LUW, DB2 for z/OS, Sybase
C) DB2 for LUW, DB2 for z/OS, SQL Server
D) DB2 for LUW, DB2 for z/OS, MySQL

5. Which SQL statement is allowed in a BEFORE trigger?

A) CALL
B) INSERT
C) MERGE
D) UPDATE

Solutions: