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DbMs
DbMs
DbMs
DbMs
DbMs
DbMs
DbMs
DbMs
DbMs
DbMs
DbMs
DbMs
DbMs
DbMs
DbMs
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DbMs

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DIS Z MINE BUT NOW ITS OURS..

DIS Z MINE BUT NOW ITS OURS..

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Transcript

  • 1. DBMS Emraan Ahmad Reg no. 520789486 Bsc-it 6 th Sem Sikkim manipal university
  • 2. Content
    • Objectives
    • Introduction of DBMS
    • Component of Dbms environment
    • Features of Dbms
    • Roles in the Database environment
    • History of Database system
    • Functions of Dbms
    • Advantages of Dbms
    • Disadvantages of Dbms
  • 3. Introduction
    • Collection of interrelated data.
    • Set of programs to access data.
    • Database Applications :
      • Banking: all transactions
      • Airlines: reservations, schedules
      • Universities: registration, grades
      • Sales: customers, products, purchases
      • Human resources: employee records, salaries, tax deductions
    DBMS
  • 4. Components of DBMS Environment 16
  • 5. Component of Database System
  • 6. Components of DBMS Environment
    • Hardware
      • Can range from a PC to a network of computers.
    • Software
      • DBMS, operating system, network software (if necessary) and also the application programs.
    • Data
      • Used by the organization and a description of this data called the schema.
    17
  • 7. Components of DBMS Environment
    • Procedures
      • Instructions and rules that should be applied to the design and use of the database and DBMS.
    • People
    18
  • 8. Features of DBMS
    • Accept data input & store
    • Multi-user access
    • Security
    • Query languages (searching, sorting)
    DBMS
  • 9. Roles in the Database Environment
    • Data Administrator (DA)
    • Database Administrator (DBA)
    • Database Designers (Logical and Physical)
    • Application Programmers
    • End Users (native and sophisticated)
    19
  • 10. History of Database Systems
    • First-generation
      • Hierarchical and Network
    • Second generation
      • Relational
    • Third generation
      • Extended Relational
      • Object-Oriented
    20
  • 11.
    • Create databases
    • Create tables
    • Create supporting structures
    • Read database data
    • Modify database data (insert, update, delete)
    • Maintain database structures
    • Enforce rules
    • Control concurrency
    • Provide security
    • Perform backup and recovery
    Functions of DBMS
  • 12. Advantages of DBMS
    • Control of data redundancy.
    • Data consistency
    • More information from the same amount of data.
    • Sharing of data.
    • Improved data integrity.
    • Improved security.
    • Enforcement of standards.
    • Economy of scale.
    21
  • 13. Advantages of DBMS
    • Balanced conflicting requirements
    • Improved data accessibility and responsiveness
    • Increased productivity
    • Improved maintenance through data independence
    • Increased concurrency
    • Improved backup and recovery services
    22
  • 14. Disadvantages of DBMS
    • Complexity
    • Size
    • Cost of DBMS
    • Additional hardware costs
    • Cost of conversion
    • Performance
    • Higher impact of a failure
    23
  • 15. ORACLE
    • ORACLE is the no.1 RDBMS.
    • ORACLE Corporation Ltd. is the name of the company.
    • It belongs to backend section & also to the frontend s/w is D2k(Developer 2000), now it is J Developer.
    • It is a two Tier Application.

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