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IBM A2090-730 Exam Syllabus Topics:

IBM Assessment: DB2 9 Family Fundamentals Sample Questions:

1. Given that tables T1 and T2 contain the following rows:
Table T1: C1 C2
5 4 5 2 5 5 Table T2: C1 C2
5 1 5 2 5 3 Which of the following queries will return only those rows that exist in T1 and not in T2 ?

A) SELECT * FROM T2 UNION EXCEPT SELECT * FROM T1
B) SELECT * FROM T1 EXCEPT SELECT * FROM T2
C) SELECT * FROM T1 MINUS SELECT * FROM T2
D) SELECT * FROM T1 NOT EXISTS SELECT * FROM T2

2. Which of the following database objects can be used to raise an error if a table is updated?

A) Informational Constraint
B) Trigger
C) Package
D) Stored Procedure

3. Which of the following DB2 data types has a fixed length?

A) XML
B) DOUBLE
C) DBCLOB
D) BLOB

4. For which of the following is a data warehouse optimized?

A) Security
B) Transactions
C) Queries
D) Backup and recovery

5. If the following SQL statement is executed:
CREATE TABLE sales
(invoice_no NOT NULL PRIMARY KEY,
sales_date DATE,
sales_amt NUMERIC(7,2))
IN tbsp0, tbsp1, tbsp2, tbsp3
PARTITION BY RANGE (sales_date NULLS FIRST)
(STARTING '1/1/2007' ENDING '12/31/2007'
EVERY 3 MONTHS)
Which of the following statements is true?

A) If an index is created for the SALES table, its data must be stored in table space TBSP0
B) When resolving queries against the SALES table, each partition used is scanned asynchronously and the results of each partition scan are merged to produce the result data set returned
C) Data can be quickly rolled in and out of the SALES table by using the ATTACH PARTITION and DETACH PARTITION clauses of the ALTER TABLE statement
D) Administrative tasks such as backing up, restoring, and reorganizing data stored in the SALES table must be done at the table level; not at the partition level

Solutions: