IBM IBM Certified Database Associate C2090-730 Questions & Answers

• Question 191:

  Which of the following commands is used to retrieve database names from the local catalog for DRDA host databases on System i and System z?

  A. LIST DB DIRECTORY

  B. LIST DCS DIRECTORY

  C. LIST NODE DIRECTORY

  D. LIST ACTIVE DATABASES

  Correct Answer: B

• Question 192:

  A sequence was created with the DDL statement shown below: CREATE SEQUENCE my_seq START WITH 5 INCREMENT BY 5 CACHE 5

  User1 successfully executes the following statements in Connection1: VALUES NEXT VALUE FOR my_seq INTO :con1hvar VALUES NEXT VALUE FOR my_seq INTO :con1hvar User2 successfully executes the following statement in Connection2: VALUES NEXT VALUE FOR my_seq INTO :con2hvar

  After User1 and User2 are finished, User3 executes the following statement in Connection3:

  SELECT NEXT VALUE FOR my_seq FROM sysibm.sysdummy1

  Which value will be returned by the query?

  A. 20

  B. 25

  C. 50

  D. 55

  Correct Answer: D

• Question 193:

  A sequence was created with the DDL statement shown below:

  CREATE SEQUENCE my_sequence CACHE 10 ORDER

  The following statements are successfully executed in sequence through separate database connections:

  CONNECTION1 - VALUES NEXT VALUE FOR my_sequence INTO :con1hvar CONNECTION2 - VALUES

  NEXT VALUE FOR my_sequence INTO :con2hvar CONNECTION1 - VALUES NEXT VALUE FOR my_sequence INTO :con1hvar What is the current value of the :con1hvar host variable?

  A. 2

  B. 3

  C. 11

  D. 30

  Correct Answer: B

• Question 194:

  Which of the following is a characteristic of a sequence?

  A. A sequence will never generate duplicate values.

  B. The MAXVALUE of a sequence can be equal to the MINVALUE.

  C. It is not possible to create a sequence that generates a constant since the INCREMENT value must be greater than zero.

  D. When a sequence cycles back to either the MAXVALUE or MINVALUE, it will always be equal to the specified value of either of these two boundaries.

  Correct Answer: B

• Question 195:

  Which of the following provides a logical grouping of database objects?

  A. View

  B. Table

  C. Schema

  D. Buffer pool

  Correct Answer: C

• Question 196:

  Given the following DDL for the PARTS table:

  CREATE TABLE parts (part_no INT(9) NOT NULL, part_name VARCHAR(24), part_remain INT(9));

  All part numbers entered will be different and all rows should be displayed in order of increasing part numbers whenever the table is queried. Which of the following create index statements will meet this criteria and require the least amount of storage for the index object?

  A. CREATE UNIQUE INDEXidx_partno ON parts(part_no)

  B. CREATE UNIQUE INDEXidx_partno ON parts(part_name ASC)

  C. CREATE UNIQUE INDEXidx_partno ON parts(part_name, part_no ASC)

  D. CREATE UNIQUE INDEXidx_partno ON parts(part_no, part_name ASC)

  Correct Answer: A

• Question 197:

  The following SQL statements were executed in sequence:

  CREATE DISTINCT TYPE salary AS decimal(7,2) WITH COMPARISONS; CREATE TABLE staffsalary(empid INT, empsalary salary); INSERT INTO staffsalary VALUES (10, 50000), (20, 50000.00); UPDATE staffsalary SET empsalary = 60000 What is the current content of the staffsalary table?

  A. ID | EMPSALARY ----------------- 10 | 60000 20 | 50000.00 ----------------

  B. ID | EMPSALARY ----------------- 10 | 50000.00 20 | 50000.00 ----------------

  C. ID | EMPSALARY ----------------- 10 | 60000.00 20 | 60000.00 ----------------

  D. ID | EMPSALARY ----------------- 10 | 60000.00 20 | 50000.00 ----------------

  Correct Answer: C

• Question 198:

  A programmer wants to generate values for a numeric ID column in their EXPENSE table. The ID column values need to be incremented by 1000 for each new expense report added to the EXPENSE table. Which

  DB2 object can be referenced by an INSERT statement to meet this requirement?

  A. Sequence

  B. Table Function

  C. Identity Column

  D. INSTEAD OF Trigger

  Correct Answer: A

• Question 199:

  When a client using the SERVER_ENCRYPT authentication type connects to a server using the SERVER authentication type, what happens?

  A. An error will occur.

  B. Data passed between the client and the server is encrypted.

  C. User IDs and passwords are passed to the server unencrypted.

  D. User IDs and passwords are encrypted before they are passed to the server.

  Correct Answer: A

• Question 200:

  Which of the following database objects is considered executable using SQL?

  A. View

  B. Table

  C. Routine

  D. Package

  Correct Answer: C