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| Section | Objectives |
|---|---|
| Topic 1: SQL Fundamentals | - Basic SQL statements (SELECT, INSERT, UPDATE, DELETE) - Joins, filtering, and sorting data |
| Topic 2: Database Objects and Structures | - Data types and data organization - Tables, views, indexes, and schemas |
| Topic 3: Performance and Utilities | - Basic performance tuning concepts - DB2 utilities and maintenance tools |
| Topic 4: Database Administration Basics | - Backup and recovery concepts - Security and user management fundamentals |
| Topic 5: DB2 Architecture and Concepts | - Instances, databases, and storage structures - DB2 environment overview and components |
1. Which of the following can NOT be used to restrict specific values from being inserted into a column in a particular table?
A) Referential constraint
B) Check constraint
C) Default constraint
D) Index
2. To which of the following resources can a lock be applied?
A) Bitmap
B) Row
C) Alias
D) Column
3. Which two of the following are optional and do not have to be specified when creating a table?
A) Column data type
B) NOT NULL constraint
C) Column name
D) Table name
E) Default constraint
4. To which of the following resources can a lock NOT be applied?
A) Rows
B) Tables
C) Buffer pools
D) Table spaces
5. 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
WHERE salary(50000) = empsalary;
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 ----------------
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: B | Question # 3 Answer: B,E | Question # 4 Answer: C | Question # 5 Answer: C |
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