Weak Entity and Strong Entities in DBMS

An entity set that does not possess sufficient attributes to form a primary key is called a weak entity set. One that does have a primary key is called a strong entity set.

 For example,
The entity set transaction has attributes transaction-number, date and amount.
Different transactions on different accounts could share the same number.
These are not sufficient to form a primary key (uniquely identify a transaction).

List of C programs to be written in File (2nd Sem)

Dear Students,

Here is a list of programs which you are supposed to write in your file.
I am not specifying all the programs which we have done in the lab, but only some of the basic programs. Make sure that you have at least recorded all of them in your files.

Structures in C :

1. To display mark sheet of one student, where student is defined as structure as per its attributes.
2. To display mark sheet of such n students, as per previous program.
3. Create a structure bank and perform following functions :
   

Download all C- Programs (sem-2)

Hello, Friends we have got all the C Programs which we have done in C Lab. If you want any program then download given below file, Its contains all the programs.

Download .rar File

Download .doc file of C Materials

Document File (Pointer )1

Document File (Structure)2

Download C Materials for Semester 2

Image file 1

Image file 2

Image file 3

Image file 4

Image file 5

IMP Questions for Computer Organization

1. What’s Hardware and Software?
2. What’s Application and System Software?
3. Explain Computer Organization & Functional Units
4. Explain Main Memory & Auxiliary Memory
5. What’s Device Controller?

Count Array elements with Pointers ( homework )

#include<stdio.h>
#include<conio.h>

void main()
{
int a[20],i,*p,ct=0,n;
clrscr();

Learn Pointer easily with Hindi

Friends watch this video you will get how pointer work.

DBMS Assignment 2 Questions

Q.1    Describe the below mentioned topics and their advantages and disadvantages.

            1. Hierarchical Model
            2. Network Model
            3.Relational Model
            4.Entity Relational Model

Degrees of Data Abstraction

Hello Students,

Here is a wonderful documentation of three schema architecture of DBMS or Degrees of Data abstraction..
http://www.myreadingroom.co.in/images/stories/docs/dbms/degrees%20of%20data%20abstraction.pdf

-Shalini