Database Systems: Design, Implementation, and Management



Download 1 Mb.
bet2/8
Sana01.06.2022
Hajmi1 Mb.
#628267
1   2   3   4   5   6   7   8
Bog'liq
Database systems and benefits

Advantages of DBMS

    • Makes data management more efficient and effective
    • Query language allows quick answers to ad hoc (one time) queries
    • Provides easier access to better-managed data
    • Promotes integrated view of organization’s operations
    • Reduces the probability of inconsistent data (same data stored in different places with possibility of different values)

DBMS Manages Interaction

  • Database Systems: Design, Implementation, & Management, 5th Edition, Rob & Coronel
  • Figure 1.2

Database Design

  • Database Systems: Design, Implementation, & Management, 5th Edition, Rob & Coronel
  • Importance of Good Design
    • Poor design results in unwanted data redundancy (unnecessary duplication of data)
    • Poor design generates errors leading to decisions based on incorrect data
  • Practical Approach
    • Focus on principles and concepts of database design
    • Importance of logical design

Historical Roots of Database

  • Database Systems: Design, Implementation, & Management, 5th Edition, Rob & Coronel
  • First computer applications focused on clerical tasks (eg preparing bills)
  • Requests for information (eg how many bills were not paid this month) quickly followed
  • File systems developed to address needs
    • Data organized according to expected use
    • Data Processing (DP) specialists computerized manual file systems

File Terminology

  • Database Systems: Design, Implementation, & Management, 5th Edition, Rob & Coronel

Download 1 Mb.

Do'stlaringiz bilan baham:
1   2   3   4   5   6   7   8




Ma'lumotlar bazasi mualliflik huquqi bilan himoyalangan ©hozir.org 2024
ma'muriyatiga murojaat qiling

kiriting | ro'yxatdan o'tish
    Bosh sahifa
юртда тантана
Боғда битган
Бугун юртда
Эшитганлар жилманглар
Эшитмадим деманглар
битган бодомлар
Yangiariq tumani
qitish marakazi
Raqamli texnologiyalar
ilishida muhokamadan
tasdiqqa tavsiya
tavsiya etilgan
iqtisodiyot kafedrasi
steiermarkischen landesregierung
asarlaringizni yuboring
o'zingizning asarlaringizni
Iltimos faqat
faqat o'zingizning
steierm rkischen
landesregierung fachabteilung
rkischen landesregierung
hamshira loyihasi
loyihasi mavsum
faolyatining oqibatlari
asosiy adabiyotlar
fakulteti ahborot
ahborot havfsizligi
havfsizligi kafedrasi
fanidan bo’yicha
fakulteti iqtisodiyot
boshqaruv fakulteti
chiqarishda boshqaruv
ishlab chiqarishda
iqtisodiyot fakultet
multiservis tarmoqlari
fanidan asosiy
Uzbek fanidan
mavzulari potok
asosidagi multiservis
'aliyyil a'ziym
billahil 'aliyyil
illaa billahil
quvvata illaa
falah' deganida
Kompyuter savodxonligi
bo’yicha mustaqil
'alal falah'
Hayya 'alal
'alas soloh
Hayya 'alas
mavsum boyicha


yuklab olish