Model
SQL
Fayllar tizimi
Munosabat
Jadval
Fayl
Atribut
Ustun
Maydon
Kortej
Qator
Yozuv
TOPSHIRIQ
Bugungi
ma’ruzamizda o’rganganlaringizni Klaster usulidan foydalanib mu
stahkamlang.
Klaster tuzish qoidasi:
1. Aqlingizga nima kelsa, barchasini y
ozing. Goyalar sifatini muhokama qilmang
faqat ularni yozing.
2. Xatni
to’xtatadigan imlo xatolarga v
a boshqa omillarga
e’tabor bermang.
3. Ajratilgan vaqt tugaguncha yozishni
to’xtatmang. Agar g’oyalar kelishi birdan to’
xtasa, u holda qachonki yangi
g’oya kelgu
ncha
qog’ozga rasm chizib turing.
Foydalanilgan manbaalar
1. J. D. Ullman and J. Widom. A First Course in Data
base Systems. Prentice Hall Upper Saddle River, Ne
w Jersey 07458, 2010 y.
2. Date, C. J. and H. Darwen. A Guide to the SQL St
andard, Fourth Edition, Addison-Wesley, Reading, M
A, 2011 y.
3. Gavin Powell. Beginning Database Design 2006 b
y Wiley Publishing, Inc., Indianapolis, Indiana, USA
4. www.w3schools.com/sql
5. www.techonthenet.com/sql
6. http://www.inlab.uz/e-lessons/sql_tutorial
Thank you
|
