Oracle 10g SQL Fundamentals I-Intro

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Introduction : 

Introduction

Lesson Objectives : 

Lesson Objectives After completing this lesson, you should be able to do the following: List the features of Oracle10g Discuss the theoretical and physical aspects of a relational database Describe the Oracle implementation of the RDBMS and ORDBMS Understand the goals of the course

Goals of the Course : 

Goals of the Course After completing this course, you should be able to do the following: Identify the major structural components ofOracle Database 10g Retrieve row and column data from tables with the SELECT statement Create reports of sorted and restricted data Employ SQL functions to generate and retrieve customized data Run data manipulation language (DML) statements to update data in Oracle Database 10g Obtain metadata by querying the dictionary views

Oracle10g : 

Oracle10g

Oracle10g : 

Oracle10g

Oracle Database 10g : 

Oracle Database 10g Multimedia Object relational data Messages Documents

Oracle Application Server 10g : 

Oracle Application Server 10g Application development framework Application server Business intelligence Portals Integration Transactional applications

Oracle Enterprise Manager 10g Grid Control : 

Oracle Enterprise Manager 10g Grid Control Software provisioning Application service level monitoring

Relational and Object RelationalDatabase Management Systems : 

Relational and Object RelationalDatabase Management Systems Relational model and object relational model User-defined data types and objects Fully compatible with relational database Support of multimedia and large objects High-quality database server features

Oracle Internet Platform : 

Oracle Internet Platform System management Network services Databases Application servers Internet applications Anybrowser AnyFTP client Anymail client SQL PL/SQL Java Clients Presentation and business logic Business logic and data Development tools

System Development Life Cycle : 

System Development Life Cycle

System Development Life Cycle : 

System Development Life Cycle

Data Storage on Different Media : 

Data Storage on Different Media Electronic spreadsheet Filing cabinet Database

Relational Database Concept : 

Relational Database Concept Dr. E. F. Codd proposed the relational model for database systems in 1970. It is the basis for the relational database management system (RDBMS). The relational model consists of the following: Collection of objects or relations Set of operators to act on the relations Data integrity for accuracy and consistency

Definition of a Relational Database : 

Definition of a Relational Database A relational database is a collection of relations or two-dimensional tables.

Data Models : 

Data Models

Entity Relationship Model : 

Create an entity relationship diagram from business specifications or narratives: Scenario “. . . Assign one or more employees to a department . . .” “. . . Some departments do not yet have assigned employees . . .” Entity Relationship Model EMPLOYEE #* number * name o job title DEPARTMENT #* number * name o location assigned to composed of

Entity Relationship Modeling Conventions : 

Entity Relationship Modeling Conventions Entity Singular, unique name Uppercase Soft box Synonym in parentheses Unique identifier (UID) Primary marked with “#” Secondary marked with “(#)” EMPLOYEE #* number * name o job title DEPARTMENT #* number * name o location Attribute Singular name Lowercase Mandatory marked with * Optional marked with “o” assigned to composed of

Entity Relationship Modeling Conventions : 

Entity Relationship Modeling Conventions Unique Identifier (UID) Primary marked with # Secondary marked with (#) Entity Singular, unique name Uppercase Soft box Synonym in parentheses Attribute Singular name Lowercase Mandatory marked with * Optional marked with “o” EMPLOYEE #* number * name o job title DEPARTMENT #* number * name o location assigned to composed of

Relating Multiple Tables : 

Relating Multiple Tables Each row of data in a table is uniquely identified by a primary key (PK). You can logically relate data from multiple tables using foreign keys (FK).

Relational Database Terminology : 

Relational Database Terminology

Relational Database Properties : 

Relational Database Properties A relational database: Can be accessed and modified by executing structured query language (SQL) statements Contains a collection of tables with no physical pointers Uses a set of operators

Communicating with an RDBMSUsing SQL : 

Communicating with an RDBMSUsing SQL SQL statement is entered. Statement is sent to Oracle server. Oracle server SELECT department_name FROM departments;

Oracle’s Relational Database Management System : 

Oracle’s Relational Database Management System User tables Data dictionary Oracle server

SQL Statements : 

SQL Statements SELECT INSERT UPDATE DELETE MERGE CREATE ALTER DROP RENAME TRUNCATE COMMENT GRANT REVOKE COMMIT ROLLBACK SAVEPOINT Data manipulation language (DML) Data definition language (DDL) Transaction control Data control language (DCL)

Tables Used in the Course : 

Tables Used in the Course EMPLOYEES DEPARTMENTS JOB_GRADES

Summary : 

Summary Oracle Database 10g is the database for grid computing. The database is based on the object relational database management system. Relational databases are composed of relations, managed by relational operations, and governed by data integrity constraints. With the Oracle server, you can store and manage information by using the SQL language and PL/SQL engine.

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