Computer Science Studies (BIT)
Would you like to react to this message? Create an account in a few clicks or log in to continue.

Computer Science Studies (BIT)

This fourm is created by Sir Muhammad Tahir Farooq. The purpose of creating this fourm to share information the students.
 
HomeHome  Latest imagesLatest images  RegisterRegister  Log inLog in  
Aslam-O-Alikum!
Search
 
 

Display results as :
 
Rechercher Advanced Search
Calender
Latest topics
» Chapter #1 Complete MCQ's (PART-1)
DAta Base Questions Answers EmptyTue Feb 24, 2015 6:00 am by Shaheer

» Windows Operating System (COMPLETE)
DAta Base Questions Answers EmptyMon Jan 26, 2015 10:17 am by shaista

» Computer Architecture (COMPLETE)
DAta Base Questions Answers EmptySun Jan 25, 2015 5:52 am by shaista

» A virus that create more folders in your computer
DAta Base Questions Answers EmptyTue Jan 06, 2015 3:49 am by tahir48

» Browsers Comparision
DAta Base Questions Answers EmptyTue Jan 06, 2015 3:39 am by tahir48

» WEb to PDF convert
DAta Base Questions Answers EmptySun Jan 04, 2015 7:34 am by shaista

» 7th Class Computer paper 1st 2 Chapters
DAta Base Questions Answers EmptyMon Dec 08, 2014 6:21 pm by shaista

» 8th Class Computer Paper 1st 2 chapters
DAta Base Questions Answers EmptyMon Dec 08, 2014 6:16 pm by shaista

» Chapter # 1 9th Class
DAta Base Questions Answers EmptyMon Dec 08, 2014 2:52 am by shaista

Poll
Top posters
Admin
DAta Base Questions Answers Vote_lcapDAta Base Questions Answers Voting_barDAta Base Questions Answers Vote_rcap 
shaista
DAta Base Questions Answers Vote_lcapDAta Base Questions Answers Voting_barDAta Base Questions Answers Vote_rcap 
tahir48
DAta Base Questions Answers Vote_lcapDAta Base Questions Answers Voting_barDAta Base Questions Answers Vote_rcap 
computerstudent18
DAta Base Questions Answers Vote_lcapDAta Base Questions Answers Voting_barDAta Base Questions Answers Vote_rcap 
computerstudent29
DAta Base Questions Answers Vote_lcapDAta Base Questions Answers Voting_barDAta Base Questions Answers Vote_rcap 
thompson john
DAta Base Questions Answers Vote_lcapDAta Base Questions Answers Voting_barDAta Base Questions Answers Vote_rcap 
Shaheer
DAta Base Questions Answers Vote_lcapDAta Base Questions Answers Voting_barDAta Base Questions Answers Vote_rcap 
Statistics
We have 31 registered users
The newest registered user is Esha

Our users have posted a total of 214 messages in 210 subjects
Flag Counter
DAta Base Questions Answers Flags_1

Computer Science Studies (BIT) :: ENGLISH Section :: 1st Year And 2nd Year
 

 DAta Base Questions Answers

Go down 
AuthorMessage
Admin
Admin
Admin
Admin


Posts : 114
Join date : 2012-10-29
Location : Lahore Pakistan

DAta Base Questions Answers Empty
PostSubject: DAta Base Questions Answers   DAta Base Questions Answers EmptyTue Jul 15, 2014 6:34 pm
Q1:-Describe the three levels of data abstraction?
Ans:- The are three levels of abstraction:
1.Physical level:The lowest level of abstraction describes how data are stored.
2.Logical level:The next higher level of abstraction, describes what data are stored in database and what relationship among those data.
3.View level:The highest level of abstraction describes only part of entire database.
Back to top Go down
https://computerstudies.forumotion.com
 
DAta Base Questions Answers
Back to top 
Page 1 of 1
 Similar topics
-
» DAta Base Questions Answers 2
» DBMS Questions
» CCNA Questions
» CCNA Questions 2
» Data Mining

Permissions in this forum:You cannot reply to topics in this forum
Computer Science Studies (BIT) :: ENGLISH Section :: 1st Year And 2nd Year-
Jump to: