3 Copyright © 2005, Oracle. All rights reserved. Creating an Oracle Database

3Copyright © 2005, Oracle. All rights reserved.

Creating an Oracle Database

3-2 Copyright © 2005, Oracle. All rights reserved.

Objectives

After completing this lesson, you should be able to do the following:

• Answer basic logical and physical database design questions

• Use the Database Configuration Assistant (DBCA) to create a database design template

• Use the DBCA to create an additional database (based on a template)

• Use the DBCA to delete a database


Tasks of a Database Administrator

Task 1: Evaluating the database server hardware

Task 2: Installing the Oracle database software

Task 3: Planning the database

Task 4: Creating and opening the database

Task 5: Backing up the database

Task 6: Enrolling system users

Task 7: Implementing the database design

Task 8: Backing up the fully functional database

Task 9: Tuning database performance


Planning the Database

As a DBA, you must plan:

• The logical storage structure of the database and its physical implementation:– How many disk drives do you have for this?– How many data files will you need? (Plan for

growth)– How many tablespaces will you use?– Which type of information will be stored? Any

special storage requirements due to type or size?

• The overall database design

• A backup strategy for the database


Planning the Database: Considerations

• The performance of the servers running Oracle database instances

• The performance of the database during data access operations

• The efficiency of backup and recovery procedures for the database


Databases: Examples

• Data Warehouse: Store data for long periods and retrieve them in read operations:

• Research and marketing data– State or federal tax payments

– Professional licensing (doctors, nurses, and so on)

• Transaction Processing: Accommodate many, but usually small transactions:– Store checkout register system

– Automatic teller machine (ATM) transactions

• General Purpose: Work with transactions and store them for a medium length of time:– Retail billing system, for example, of a software house or

a nursery


Physical and Logical Design Questions: Quiz

1. DBAs should consider growth and security factors when planning a database.

2. It is a good idea to store data and indexes on the same physical disk although you have several disks available.

3. The size of a database can be described by the sum of all its tablespaces.

4. Database objects belonging to one schema can be stored in multiple tablespaces.

5. Blocks in online transaction processing (OLTP) systems should always be as full as possible, because updates never occur in this type of system.

True/False

True/False

True/False

True/False

True/False


Database Configuration Assistant (DBCA)


Creating a Database Design Template


Creating a Database Design Template


Using the DBCA to Create a Database





A

B


Simplified Initialization Parameters

DB_CACHE_SIZEDB_FILE_MULTIBLOCK_READ_COUNTSHARED_POOL_SIZE…

Advanced

CONTROL_FILESDB_BLOCK_SIZEPROCESSESUNDO_MANAGEMENT…

Basic


Using the DBCA to Delete a Database

3

1

2


Summary

In this lesson, you should have learned how to:

• Answer basic logical and physical database design questions

• Use the DBCA to create a database design template

• Use the DBCA to create an additional database (based on a template)

• Use the DBCA to delete a database


Practice Overview: Using the DBCA

This practice covers the following topics:

• Creating a database design template by using the DBCA

Optionally:

• Creating an additional database

• Deleting a database

Documents

3 Copyright © 2005, Oracle. All rights reserved. Creating an Oracle Database