What is a Database? You can think of a database as an electronic

filing system.

It consists of fields, records and files. A field is a single

piece of information; a record is one complete set of

fields; and a file is a collection of records. For eg,

a telephone book.

Microsoft Access-Most popular PC DBMS.

-Create small database applications for a variety of purposes.

Microsoft Access Advantages

Ease of Use

Simple backups/ archiving

Data Migration

Microsoft Access Disadvantages

Limited to small databases

Limited to low transaction rates

Limited to low concurrent database usage

Alternative: Visual FoxPro Capability of supporting larger

number of records. Efficiently send and receive data

across the internet.

MS Access 2002 Interact with Your Data on the Web with the

help of XML (Extensible Markup Language).

Ability to access information from

corporate-level, back-end databases such

as SQL Server.

Conclusion: Quick development and ease of use are

the two primary advantages of choosing

Microsoft Access.

DB2—A New Database Software

On May 8, IBM announced its new DB2 database

software—DB2 version 7.2.

The increased focus on data and product

integration.

FUNCTIONS

Enhanced integration capabilities with WebSphere Application Server and MQSeries, two industry-leading e-infrastructure components.

Support for emerging Web Services standards. The powerful database to offer high-performance

access to expanded data sources, in all formats and locations, including competing database products such as Oracle, Sybase, and Microsoft SQL Server.

e-Business Integration Software integration enables

customers: 1. To streamline their business processes. 2. To enhance their existing infrastructure. 3. To minimize the skills required to support their IT environment.

Information Integration DB2 provides customers the fastest path to

integrating their business to the extended e-infrastructure.

The latest version of DB2 offers customers access to information stored in Informix,Sybase, Microsoft SQL Server and Oracle.

DB2 also incorporates built in business intelligence connectors to enable seamless integration with developer solutions.

Technology Leadership DB2 is the world’s most renowned

database surpassing the competition for

its scalability, reliability and total cost of

ownership (TCO).

Conclusion The fact that DB2 Universal Database

together with Internet technology makes

information easily accessible ,available

and secure indicates that the modern

MIS technology has developed such a

stage where customers can work

faster and more effectively to

manage information, and save both

time and money.

Oracle9i Database Oracle9i Database offers new transparent,

rapid growth clustering capabilities, along

with powerful and cost-effective security

measures, zero-data-loss safeguards,

and real-time intelligence to deliver the

power needed in today's dynamic

marketplace.

Features Enhanced Disaster Recovery Environment Oracle9i sets a new standard for high availability with the introduction of four powerful new features that protect against the most disruptive event an e-business can encounter: downtime.

Oracle9i Data Guard

Oracle9i Data Guard maintains a physical

standby database that assures no loss of

data during log transport.

Disaster Recovery

Oracle9i offers many new features for

disaster recovery

Features Human Error Safeguards Oracle9i eases the challenge of failures or downtime due to human errors, including erroneous or out-of- sequence updates.

Oracle9i Flashback Query Oracle9i Flashback Query lets users and applications query data as it appeared in the past. Using this flashback parameter, a user can specify a date and time.

Scalability Oracle9i makes it possible to scale the most demanding e-business applications with intensive transaction loads, and thus support large populations of Internet users.

Performance Oracle9i continues to demonstrate leading performance in all relevant areas. Various performance measurement and tuning projects continue to measure, tune, and improve Oracle9i runtime performance in all areas.

Features

Security Oracle9i provides the most secure internet

platform for protecting company information by

minimizing risks through enhanced security for

data, users and for companies. Windows Integration Oracle9i reinforces Oracle's lead as the

platform of choice for organizations

deploying on Windows 2000.

Conclusion The Oracle9i Database contains important new

features that optimize traditional business

applications, facilitate critical advancement

for internet-based business, and stimulate

the emerging hosted application market.

New Oracle9i Database features deliver

the performance, scalability, and

availability essential to hosted service

software made available to anyone,

anywhere.

Computer Associates

Unicenter DBMS vs. 4.3

Unicenter DBMS Unicenter is an umbrella name for

CA’s enterprise management

software

Unicenter DBMS is one of the

product suites under the

Umbrella.

Supported Databases

IBM IMS running on z/OS (S-390)

Computer Associates Advantage

Enterprise DB Suite

Various Data Storage Applications

• SAP R/3• Peoplesoft• MS Exchange

DBMS Suite Components Database Administration for Distributed DBMS.

Back – up and Recovery.

Enhanced Diagnostics and

Recovery.

Suite components can be installed

over IBM DB-2 DBMS.

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