Using Structures write an interactive program in C language to create an application
program for a small school to maintain the Student_’s database. This application should
be having menu options like (10 Marks)
• Creating a New Record
• Reading/Listing of Records
• Modify the record
•Delete the record 

Each Student_ record should have Student_Name, Student_Roll_No., Student_Class, Student_Fees, Date of Admission, etc.). The application should be designed user-friendly.

Word Count : 1459

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To develop an interactive application in C for maintaining a small school’s student database, we can use structures to manage student records. This C program will implement a menu-driven approach to perform operations like creating new records, displaying records, modifying records, and deleting records.

### Step 1: Define the Structure

We will define a structure `Student` to hold all the required student details:

```c
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#define MAX_STUDENTS 100

// Defining structure for student
struct Student {
    char name[50];
    int rollNo;
    char className[20];
    float fees;
    char admissionDate[20];
};

// Function prototypes
void createRecord(struct Student students[], int *count);
void listRecords(struct Student students[], int count);
void modifyRecord(struct Student students[], int count);
void deleteRecord(struct Student students[], int *count);
int findStudentIndex(struct Student students[], int count, int rollNo);
```

### Step 2: Implement the Menu and Operations

The program will allow the user to choose an option from the menu. Based on the choice, it will call the respective function.

```c
int main() {
    struct Student students[MAX_STUDENTS];
    int count = 0; // To track the number of students in the database
    int choice;

    while (1) {
        // Displaying the menu
        printf("\nSchool Student Database System\n");
        printf("1. Create a New Record\n");
        printf("2. List all Records\n");
        printf("3. Modify a Record\n");
        printf("4. Delete a Record\n");
        printf("5. Exit\n");
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Degree : PG DIPLOMA PROGRAMMES
Course Name : POST GRADUATE DIPLOMA IN COMPUTER APPLICATIONS
Course Code : PGDCA_NEW
Subject Name : C and PYTHON Lab
Subject Code : MCSL 205
Year : 2023