Oracle assignment help
- 1. ORACLE ASSIGNMENT HELP By NEED ASSIGNMENT HELP
- 2. TABLE OF CONTENTS 1. WHAT IS ORACLE ? 2. SOME IMPORTANT TERMS RELATED TO ORACLE DATABASE 3. OVERVIEW OF ARCHITECTURE 4. CLIENT/SERVER ARCHITECTURE 5. WHAT IS MULTITIER ARCHITECTURE ? 6. ADVANTAGES OF MULTITIER ARCHITECTURE 7. CONTACT US 8. THANK YOU
- 3. Oracle Database is a relational database management system (RDBMS). Oracle is defined as the collection of data as a single unit. It is the most and widely used database management system. WHAT IS ORACLE ?
- 4. 1. Oracle was developed in 1977 by Lawrence Ellison with other developers. 2. Data can be directly accessed by the users through SQL queries (structured query language). WHAT IS ORACLE?
- 5. 1. RELATIONAL DATABASE RELATIONAL DATABASE IS A COLLECTION OF DATA ITEMS THAT ARE ORGANISED IN THE FORM OF TABLES. 2. SCHEMA OBJECTS SCHEMA IS A COLLECTION OF LOGICAL STRUCTURES OF DATA OR SCHEMA OBJECTS AND HAS THE SAME NAME AS THE USER NAME. SOME IMPORTANT TERMS RELATED TO ORACLE DATABASE
- 6. 3. TRANSACTION MANAGEMENT TRANSACTION MANAGEMENT BEGINS WITH THE FIRST EXECUTABLE SQL STATEMENT TO GENERATE CALLS INCLUDING DDL AND DML STATEMENTS 4. PRIMARY KEY PRIMARY KEY IS A KEY WHICH UNIQUELY IDENTIFIES ALL TABLE RECORDS. PRIMARY KEY ALWAYS HAS A UNIQUE VALUE FOR EACH ROW IN A TABLE. SOME IMPORTANT TERMS RELATED TO ORACLE DATABASE…
- 7. 5. COMPOSITE KEY WHEN A PRIMARY KEY CONSIST OF MULTIPLE FIELDS (MORE THAN ONE FIELD), IT IS CALLED AS A COMPOSITE KEY. 6. FOREIGN KEY A FOREIGN KEY IN ONE TABLE IS A KEY FROM ANOTHER TABLE AND TARGETS A PRIMARY KEY. SOME IMPORTANT TERMS RELATED TO ORACLE DATABASE…
- 8. The two common ways to architect a database are: 1. Client/server Architecture 2. Multitier Architecture OVERVIEW OF ARCHITECTURE
- 9. CLIENT/SERVER ARCHITECTURE I N C L I E N T / S E R V E R A R C H I T E C T U R E , T H E D A T A B A S E S Y S T E M I S D I V I D E D I N T O T W O P A R T S : • F R O N T - E N D O R C L I E N T • B A C K - E N D O R S E R V E R
- 10. WHAT IS A CLIENT? CLIENT IS A DATABASE APPLICATION THAT INITIATES A REQUEST FOR AN OPERATION ON THE DATABASE SERVER. IT REQUESTS THE DATA MANAGED BY THE SERVER.
- 11. WHAT IS SERVER? SERVER RUNS THE SOFTWARE AND RECEIVES THE SQL AND PL/SQL STATEMENTS THAT ARISE FROM CLIENT APPLICATIONS.
- 12. WHAT IS MULTITIER ARCHITECTURE? • A MULTITIER ARCHITECTURE HAS A CLIENT TO START AN OPERATION. • HERE, MULTIPLE APPLICATION SERVER PERFORM PARTS OF AN OPERATION. • IT IS AN INTERFACE BETWEEN CLIENTS AND MULTIPLE DATABASE SERVER.
- 13. ADVANTAGES OF MULTITIER ARCHITECTURE • I T V A L I D A T E S T H E C R E D E N T I A L S O F A C L I E N T , S U C H A S W E B B R O W S E R . • C O N N E C T T O A N O R A C L E D A T A B A S E S E R V E R . • I T P E R F O R M S T H E R E Q U E S T E D O P E R A T I O N S .
- 14. THANK YOU FOR MORE INFORMATION ON ORACLE ASSIGNMENT, CLICK http://www.needassignmenthelp.com/oracle-assignment