INTRODUCTION TO ORACLE DBA

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Introduction to Introduction to Oracle Database Oracle Database Administration Administration

Transcript of INTRODUCTION TO ORACLE DBA

Page 1: INTRODUCTION TO ORACLE DBA

Introduction to Oracle Introduction to Oracle Database AdministrationDatabase Administration

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3-tier Architecture

DATABASE

DATA

End-User Application ServerApplication Software'sApplication LogicWebsites

Network Network

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DATA

Every organization has some information needs.

• A library keeps a list of members, books, due dates, and fines.

• A company needs to save information about its employees, departments, and salaries.

These pieces of information are called data.

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Database

• A database is an organized collection of data for one or more purposes, usually in digital form.

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Oracle Database

ORACLE

DB2

INFORMIX

SQL SERVER

SYBASE

50% of Market Share

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Relational Database

• A relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model as introduced by E.F. Codd.

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Relational Database

DATABASE

DATA

Tables

End-User

SQL• Retrieve Data• Insert Data• Modify Data• Remove Data

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History of Oracle Database

ORACLE

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History Oracle Database

• In 1977, Larry Ellison, Bob Miner and Ed Oates founded Software Development Laboratories

• After reading a paper by Codd in IBM Journal of Research & Development, they created Oracle. (written in Assembly language PDP)

• Version 2.0 of Oracle was released in 1979 & The company changed its name to Relational Software Inc. (RSI)• In 1982, RSI was renamed to Oracle Corporation.• In 1983, Oracle released version 3.0, which was rewritten in C.

• In 1984, Oracle 4.0 & In 1985 version Oracle 5.0 released.

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• In 1986, Oracle goes public on the NASDAQ exchange.• In 1988, Oracle version 6.0 was released. (It provided row-level locking, hot backup and PL/SQL)• In 1992, Oracle 7.0 released. It provided better performance,

administrative utilities, application development tools, security features, stored procedures, triggers and declarative integrity.

• By 1999, Oracle released Oracle 8i. Supported for XML, Java Virtual Machine (JVM) to run Java program in Database and also scalability, which was required for internet databases.

• In 1997, Oracle released Oracle 8.0. It started embracing Java. Partitioning, support for images, large text, external data etc.(lobs) are provided. *Started support for Object in database (Object-Relational DBMS)

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History Oracle Database

• In 2001, Oracle9i was released. Allows Oracle to run on RAC.• In 2003, Oracle10g was released, where g stands for Grid computing.

• In 2007, Oracle has released Oracle11g.

Employing nearly 1,08,000 people worldwide as of 31 May 2011.

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Responsibilities of Administrator

DATABASE

Enforcing Data INTEGRITY

ASSIST PROGRAMMERS

MaintainingSECURITY

ProvidingAVAILABILITY

RECOVERING DATA

PERFORMANCE

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Questions?

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THANK YOUfor attending Demo of Oracle DBA

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Call : +1-610-686-8077 , Email : [email protected]