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IBM Assessment: DB2 9.7 SQL Procedure Developer Sample Questions:

1. Assuming C1 and C2 are cursor type variables, which of the following operations cannot be performed?

A) SET c1 = CURSOR FOR VALUES ('a', 'b', 'c');
B) IF (c1 = c2) THEN ?END;
C) SET c1 = CURSOR FOR SELECT * FROM t;
D) SET c2 = c1;

2. In the function shown below:

Which statement can be used to invoke the function above?

A) SELECT TABLE(fcn1('B01')) FROM SYSIBM.SYSDUMMY1
B) SELECT fcn1('B01') FROM SYSIBM.SYSDUMMY1
C) SELECT * FROM TABLE(fcn1('B01'))
D) SELECT * FROM fcn1('B01')

3. 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 has to retry in order to retrieve the current data.
B) The row will be found with a different ROW CHANGE TOKEN and Transaction 2 will overwrite the values set in transaction 1.
C) 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.
D) The row will be found with the same ROW CHANGE TOKEN. Transaction 2 will now insert its values replacing those of transaction 1.

4. Click the Exhibit button.
Referring to the exhibit, how many rows will be returned by the SQL query shown below? SELECT
*FROM TABLE(getnumemployee(21?) AS dSELECT * FROM TABLE(getnumemployee(?21?) AS d

A) 1
B) 0
C) 7
D) 10

5. Which tool can be used to get quick static SQL Explain data from packages?

A) DB2 command center
B) db2exfmt
C) db2expln
D) Control Center

Solutions: