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IBM Assessment: DB2 9.7 SQL Procedure Developer Sample Questions:

1. Which of the following can be used to assign multiple values to a row data type variable?

A) A SELECT * statement, a VALUES * statement, or a FETCH * statement.
B) A DIRECT ASSIGNMENT statement.
C) A SELECT INTO statement, a VALUES INTO statement, or a FETCH INTO statement.
D) A VARIABLE VALUES statement.

2. Click the Exhibit button.

How many rows will be in table INFO2 after the procedure MOVE_DATA shown in the exhibit is executed?

A) 0
B) 7
C) 5
D) 4

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

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

4. Using Optimistic Locking, both Transaction 1 and Transaction 2 have read the same row including the RID_BIT and ROW CHANGE TOKEN values. Transaction 1 updates the row after ensuring that the row has not changed after the previous SELECT by adding a RID_BIT and ROW CHANGE TOKEN predicate to the UPDATE statement. Transaction 2 now tries to update that same row using the same predicate as transaction 1. What will be the result?

A) The row will not be found because the value of the ROW CHANGE TOKEN has changed in regard to the UPDATE of transaction 1. Transaction 2 will complete with an insert of a new row.
B) The row will not be found because the value of the ROW CHANGE TOKEN has changed in regard to the UPDATE of transaction 1. Transaction 2 has to retry in order to retrieve the current data.
C) The row will be found with the same ROW CHANGE TOKEN. Transaction 2 will now insert its values replacing those of transaction 1.
D) The row will be found with a different ROW CHANGE TOKEN and Transaction 2 will overwrite the values set in transaction 1.

5. Which option is used when declaring a global temporary table that will keep its data across transaction boundaries?

A) ON ROLLBACK DELETE ROWS
B) ON COMMIT PRESERVE ROWS
C) ON COMMIT DELETE ROWS
D) ON ROLLBACK PRESERVE ROWS

Solutions: