IBM DB2 A2090-730

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IBM Assessment: DB2 9 Family Fundamentals Sample Questions:

1. A table named DEPARTMENT has the following columns:
DEPT_ID DEPT_NAME MANAGER AVG_SALARY
Which of the following is the best way to prevent most users from viewing AVG_SALARY data?

A) Store AVG_SALARY data in a separate table and grant SELECT privilege for that table to the appropriate users
B) Encrypt the table's data
C) Create a view that does not contain the AVG_SALARY column
D) Revoke SELECT access for the AVG_SALARY column from users who should not see AVG_SALARY data

2. Which of the following will be a consequence of defining the column IDCOL2 in TABLE2 as a foreign key referencing the primary key (IDCOL1) of TABLE1?

A) DB2 will no longer allow updating the value of IDCOL1 in TABLE1.
B) When inserting a row in TABLE2, the only values that DB2 will allow for IDCOL2 are the existing values of IDCOL1.
C) When inserting a row in TABLE2, DB2 will only allow foreign values forIDCOL2, that is values which do not exist in IDCOL1.
D) When a SELECT statement joins TABLE1 with TABLE2, DB2 will automatically add the condition TABLE1.IDCOL1=TABLE2.IDCOL2 if not specified in the statement.

3. A user wishing to invoke an SQL stored procedure that queries a table must have which of the following privileges?

A) CALL privilege on the procedure; REFERENCES privilege on the table
B) EXECUTE privilege on the procedure; SELECT privilege on the table
C) CALL privilege on the procedure; SELECT privilege on the table
D) EXECUTE privilege on the procedure; REFERENCES privilege on the table

4. User USER1 wants to utilize an alias to remove rows from a table. Assuming USER1 has no authorities or privileges, which of the following privileges are needed?

A) DELETE privilege on the table
B) DELETE privilege on the alias; REFERENCES privilege on the table
C) DELETE privilege on the alias
D) REFERENCES privilege on the alias; DELETE privilege on the table

5. A view is created with the following statement:
CREATE VIEW v1 AS SELECT col1, col2, col3, col4 FROM t1 WHERE col4 > 1000 WITH CHECK OPTION
What is the effect of the CHECK OPTION clause?

A) Any row inserted or updated through view V1 must meet the condition that col4 > 1000 and no row in table T1 can be updated such that col4 <= 1000, but new rows in the table can be inserted with col4 <= 1000.
B) From now on, any row inserted or updated in table T1 must meet the condition that col4 > 1000, but existing rows in the table are not checked.
C) At view creation, DB2 will check the data in table T1, and if in any row doesn't meet the condition col4 > 1000, the view creation will be rejected.
D) Any row inserted or updated through view V1 must meet the condition that col4 > 1000.

Solutions: