IBM A2090-730 : Assessment: DB2 9 Family Fundamentals

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IBM Assessment: DB2 9 Family Fundamentals Sample Questions:

1. Given the following statements:
CREATE TABLE tab1 (c1 INTEGER, c2 CHAR(5));
CREATE VIEW view1 AS SELECT c1, c2 FROM tab1 WHERE c1 < 100;
CREATE VIEW view2 AS SELECT c1, c2 FROM view1
WITH CASCADED CHECK OPTION;
Which of the following INSERT statements will fail to execute?

A) INSERT INTO view2VALUES(50, 'abc')
B) INSERT INTO view1 VALUES (100, 'abc')
C) INSERT INTO view1VALUES(100, 'abc')
D) INSERT INTO view2VALUES(150, 'abc')

2. An index named EMPID_X exists for a table named EMPLOYEE. Which of the following will allow user USER1 to drop the EMPID_X index?

A) GRANT DROP ON INDEXempid_x TO user1
B) GRANT CONTROL ON INDEXempid_x TO user1
C) GRANT INDEX ON TABLE employee TO user1
D) GRANT DELETE ON INDEXempid_x TO user1

3. Given the following table definition:
EMPLOYESS
EMP ID INTEGER
NAME CHAR(20)
DEPT CHAR(10)
SALARY DECIMAL (10, 2)
COMMISSION DECIMAL (8, 2)
Assuming the DEPT column contains the values 'ADMIN', 'PRODUCTION', and 'SALES', which of
the following statements will produce a result data set in which all ADMIN department employees
are grouped together, all PRODUCTION department employees are grouped together, and all
SALES department employees are grouped together?

A) SELECT name, dept FROM employees GROUP BY dept
B) SELECT name, dept FROM employees GROUP BY CUBE (dept)
C) SELECT name, dept FROM employees ORDER BY dept
D) SELECT name, dept FROM employees GROUP BY ROLLUP (dept)

4. In which of the following situations should correlation names be used?

A) Two or more tables in the FROM clause have identical column names.
B) The table referenced in the FROM clause has more than 200 columns.
C) The FROM clause contains two or more tables in the SELECT statement.
D) A table referenced in the FROM clause has no indexed column.

5. If a unique constraint is defined on column COL1 of table TAB1, what are the characteristics of COL1?

A) COL1 will accept NULL values and cannot be referenced in anothertables foreign key specification.
B) COL1 will accept NULL values and can be referenced in another table's foreign key specification.
C) COL1 will not accept NULL values and can be referenced in anothertables foreign key specification.
D) COL1 will not accept NULL values and cannot be referenced in anothertables foreign key specification.

Solutions: