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IBM A2090-730 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Working with DB2 Data using SQL and XQuery | 23.5% | - Sorting, grouping, filtering data - Transactions and concurrency control - Joins, subqueries, common table expressions - DML statements: SELECT, INSERT, UPDATE, DELETE - XML and XQuery basics |
| Working with DB2 Tables, Views and Indexes | 23.5% | - Views, materialized query tables - Data integrity and constraints - Index types and usage - Table structure and constraints |
| Planning | 14% | - Non-relational and XML data concepts - DB2 product family and editions - Workload types: OLTP, OLAP, Data Warehousing - DB2 tools and utilities |
| Working with Databases and Database Objects | 17% | - DDL statements: create, alter, drop objects - Storage structures: tablespaces, containers - Schemas, tables, views, nicknames - Instance and database connections |
| Security | 11% | - Authorities, privileges, roles - GRANT / REVOKE statements - Access control and authentication - Data and network encryption |
IBM Assessment: DB2 9 Family Fundamentals Sample Questions:
1. Which kind of non-sourced UDF can be created so that it only returns a single value?
A) Scalar
B) Column
C) Table
D) Row
2. Which of the following is used to create and debug user-defined functions?
A) Developer Workbench
B) Command Editor
C) Control Center
D) SQL Assist
3. Which of the following statements is used to grant user TOM and Application team APPGRP the ability to add data to table TAB1?
A) GRANT INSERT TO USER tom, GROUPappgrp ON TABLE tab1
B) GRANT INSERT ON TABLE tab1 TO USER tom, GROUPappgrp
C) GRANT ADD DATA ON TABLE tab1 TO USERappgrp, GROUP tom
D) GRANT ADD DATA ON TABLE tab1 TO GROUP tomappgrp
4. A sequence was created with the DDL statement shown below:
CREATE SEQUENCE my_seq START WITH 10 INCREMENT BY 10 CACHE 10
User USER1 successfully executes the following statements in the order shown:
VALUES NEXT VALUE FOR my_seq INTO :hvar; VALUES NEXT VALUE FOR my_seq INTO :hvar;
User USER2 successfully executes the following statements in the order shown:
ALTER SEQUENCE my_seq RESTART WITH 5 INCREMENT BY 5 CACHE 5; VALUES NEXT VALUE FOR my_seq INTO :hvar;
After users USER1 and USER2 are finished, user USER3 executes the following query:
SELECT NEXT VALUE FOR my_seq FROM sysibm.sysdummy1
What value will be returned by the query?
A) 5
B) 20
C) 10
D) 30
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) 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
B) 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
C) If an index is created for the SALES table, its data must be stored in table space TBSP0
D) 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
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A | Question # 3 Answer: B | Question # 4 Answer: D | Question # 5 Answer: B |

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