Download Oracle Database10g: Administration Workshop I

Creating an Oracle Database
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
3-2
Copyright © 2005, Oracle. All rights reserved.
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
3-3
Copyright © 2005, Oracle. All rights reserved.
Planning the Database
As a DBA, you must plan:
• The logical storage structure of the database and
its physical implementation:
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–
–
–
•
•
3-4
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
Copyright © 2005, Oracle. All rights reserved.
Planning the Database:
Considerations
•
•
•
3-5
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
Copyright © 2005, Oracle. All rights reserved.
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
3-6
Copyright © 2005, Oracle. All rights reserved.
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.
3-7
Copyright © 2005, Oracle. All rights reserved.
True/False
True/False
True/False
True/False
True/False
Database Configuration Assistant (DBCA)
3-8
Copyright © 2005, Oracle. All rights reserved.
Creating a Database Design Template
3-9
Copyright © 2005, Oracle. All rights reserved.
Creating a Database Design Template
3-10
Copyright © 2005, Oracle. All rights reserved.
Using the DBCA to Create a Database
3-11
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Using the DBCA to Create a Database
3-12
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Using the DBCA to Create a Database
A
B
3-13
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Simplified Initialization Parameters
Advanced
Basic
CONTROL_FILES
DB_BLOCK_SIZE
PROCESSES
UNDO_MANAGEMENT
…
3-14
DB_CACHE_SIZE
DB_FILE_MULTIBLOCK
_READ_COUNT
SHARED_POOL_SIZE
…
Copyright © 2005, Oracle. All rights reserved.
Using the DBCA to Delete a Database
1
2
3
3-16
Copyright © 2005, Oracle. All rights reserved.
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
3-18
Copyright © 2005, Oracle. All rights reserved.
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
3-19
Copyright © 2005, Oracle. All rights reserved.