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IBM DB2 9 Family Fundamentals Sample Questions:

1. Which of the following is NOT a characteristic of a declared temporary table?

A) Declared temporary tables are not persistent and can only be used by the application that creates them
B) Once the application that created a global temporary table is terminated, any records in the table are deleted and the table is automatically destroyed
C) It is possible for many applications to create declared temporary tables that have the same name
D) Declared temporary tables are created by executing a CREATE TABLE statement with the DECLARED GLOBAL TEMPORARY clause specified

2. Which of the following is the best statement to use to create a user-defined data type that can be used to store currency values?

A) CREATE DISTINCT TYPE currency AS BIGINT
B) CREATE DISTINCT TYPE currency AS SMALLINT
C) CREATE DISTINCT TYPE currency AS DOUBLE
D) CREATE DISTINCT TYPE currency ASNUMERIC(7,2)

3. How does DB2 protect the integrity of indexes when data is updated?

A) Locks are acquired on index keys.
B) Locks are acquired on index pointers.
C) Locks are acquired on index pages.
D) Locks are acquired on the data.

4. Given the following table:
CURRENT_EMPLOYEES
EMPID INTEGER NOT NULL
NAME CHAR(20)
SALARY DECIMAL(10,2)
PAST_EMPLOYEES
EMPID INTEGER NOT NULL
NAME CHAR(20)
SALARY DECIMAL(10,2)
Assuming both tables contain data, which of the following statements will NOT successfully add
data to table CURRENT_EMPLOYEES?

A) INSERT INTOcurrent_employees (empid) VALUES (10)
B) INSERT INTOcurrent_employees (name, salary) VALUES (SELECT name, salary FROM past_employees WHERE empid = 20)
C) INSERT INTOcurrent_employees SELECT empid, name, salary FROM past_employees WHERE empid = 20
D) INSERT INTOcurrent_employees VALUES (10, 'JAGGER', 85000.00)

5. Which of the following SQL statements will return the year and average salary for all employees hired within a given year that have a salary greater than $30,000?

A) SELECT * FROM t1 UNION SELECT * FROM t2
B) SELECT * FROM t1 WHERE (c1,c2)= (SELECT c1,c2 FROM t2)
C) SELECT * FROM t1 INTERSECT SELECT * FROM t2
D) SELECT * FROM t1 UNION DISTINCT SELECT * FROM t2

Solutions: