IBM IBM Certified Advanced Database Administrator A2090-610 Questions & Answers

• Question 131:

  What functionality allows users to perform a UNION operation between a DB2 table and an Oracle view?

  A. Oracle connect

  B. Trusted context

  C. Oracle federation

  D. Distributed request

  Correct Answer: D

• Question 132:

  Which object is a stored procedure defined into?

  A. Table

  B. Schema

  C. Package

  D. Database

  Correct Answer: B

• Question 133:

  Which action needs to be performed in order to complete the definition of an application-period temporal table?

  A. A transaction-start-id column must be defined for the table.

  B. A history table must be defined and associated with the base table.

  C. A BUSINESS_TIME period must be specified in a CREATE or ALTER of the table.

  D. A unique index must be created that prevents overlapping of the BUSINESS_TIME period of the table.

  Correct Answer: C

• Question 134:

  Which clause should be included in a ALTER TABLE statement to update a table definition with a new column?

  A. ADD COLUMN

  B. ALTER COLUMN

  C. APPEND COLUMN

  D. RENAME COLUMN

  Correct Answer: A

• Question 135:

  When is it appropriate to use a sequence?

  A. When you want to control the order in which triggers are fired.

  B. When you want to control the order in which stored procedures can be invoked.

  C. When you want to automatically generate a numeric value that is not tied to any specific column or table.

  D. When you want to automatically generate a numeric value for each row that is added to a specific table.

  Correct Answer: C

• Question 136:

  Which DB2 object can be used to improve the execution performance of qualified SELECT statements?

  A. Trigger

  B. SQL Procedure

  C. Sequence Object

  D. Materialized Query Table

  Correct Answer: D

• Question 137:

  Given the following DDL statement: CREATE TABLE sales (item CHAR(20)); If a DBA wishes to increase the size of the ITEM column, which SQL statement needs to be used?

  A. ALTER TABLE sales ADD COLUMN item CHAR(40);

  B. ALTER TABLE sales ALTER COLUMN item CHAR(40);

  C. ALTER TABLE sales MODIFY COLUMN item CHAR(40);

  D. ALTER TABLE sales ALTER COLUMN item SET DATA TYPE CHAR(40);

  Correct Answer: D

• Question 138:

  If the following command is executed: CREATE DATABASE test What is the page size (in kilobytes) of the database?

  A. 4

  B. 8

  C. 16

  D. 32

  Correct Answer: A