Oracle background processes

Oracle background processes

  • A multi processes Oracle system uses background processes to maximize the performance.
  • Background processes are run behind or in background of the system, are used to do deal with abnormal conditions and maintenance activities.
  • Background processes gets invoked automatically when an instance is started.

Oracle system involves the following background processes:

  1. Database Writer Process (DBWn)
  2. Log Writer Process (LGWR)
  3. System Monitor Process (SMON)
  4. Process Monitor Process (PMON)
  5. Recoverer Process (RECO)
  6. Job Queue Processes
  7. Archiver Processes (ARCn)
  8. Queue Monitor Processes (QMNn)
  9. Other Background Processes.

More topics from DBMS to read:

References:

  1. Korth, Silbertz,Sudarshan, “Fundamental of Database System”, McGraw Hill
  2. Atul Kahate , “ Introduction to Database Management System”, Pearson Educations

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JAVA Programs
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Principles of Programming Languages
EasyExamNotes.com covered following topics in these notes.

Practicals:
Previous years solved papers:
A list of Video lectures References:
  1. Sebesta,”Concept of programming Language”, Pearson Edu 
  2. Louden, “Programming Languages: Principles & Practices” , Cengage Learning 
  3. Tucker, “Programming Languages: Principles and paradigms “, Tata McGraw –Hill. 
  4. E Horowitz, "Programming Languages", 2nd Edition, Addison Wesley

    Computer Organization and Architecture ↓ 👆

    Computer Organization and Architecture 

    EasyExamNotes.com covered following topics in these notes.

    1. Structure of desktop computers
    2. Logic gates
    3. Register organization
    4. Bus structure
    5. Addressing modes
    6. Register transfer language
    7. Direct mapping numericals
    8. Register in Assembly Language Programming
    9. Arrays in Assembly Language Programming

    References:

    1. William stalling ,“Computer Architecture and Organization” PHI
    2. Morris Mano , “Computer System Organization ”PHI

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    Computer Network

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    1. Data Link Layer
    2. Framing
    3. Byte count framing method
    4. Flag bytes with byte stuffing framing method
    5. Flag bits with bit stuffing framing method
    6. Physical layer coding violations framing method
    7. Error control in data link layer
    8. Stop and Wait scheme
    9. Sliding Window Protocol
    10. One bit sliding window protocol
    11. A protocol Using Go-Back-N
    12. Selective repeat protocol
    13. Application layer
    References:
    1. Andrew S. Tanenbaum, David J. Wetherall, “Computer Networks” Pearson Education.
    2. Douglas E Comer, “Internetworking with TCP/IP Principles, Protocols, And Architecture",Pearson Education
    3. KavehPahlavan, Prashant Krishnamurthy, “Networking Fundamentals”, Wiley Publication.
    4. Ying-Dar Lin, Ren-Hung Hwang, Fred Baker, “Computer Networks: An Open Source Approach”, McGraw Hill.