Student Record Management System

Overview

This program is a Student Record Management System implemented in C. It allows users to perform various operations on a linked list of student records, such as adding, deleting, modifying, and sorting records. The program is menu-driven and provides a simple text-based interface for interaction.

---

Features

1. Add New Record:

   • Add a new student record with name, marks, and an auto-generated roll number.

2. Delete Record:

   • Delete a record by roll number or name.

3. View Records:

   • Display the entire list of student records in a tabular format.

4. Modify Record:

   • Update student details (name, roll number, or both).

5. Save Records:

   • Save the current list of records to a file named student.dat.

6. Exit:

   • Exit the program with an option to save the data.

7. Sort Records:

   • Sort the records by name or marks.

8. Delete All Records:

   • Clear all student records from the system.

9. Reverse List:

   • Display the records in reverse order.

---

How to Compile and Run

1. Compile the Program:

   gcc -o student_record_system Database_system.c

2. Run the Program:

   ./student_record_system

---

Menu Options

Option	Functionality
a/A	Add new record
d/D	Delete a record
s/S	Show all records
m/M	Modify a record
v/V	Save the records to a file
e/E	Exit the program
t/T	Sort the records
l/L	Delete all records
r/R	Reverse the list

---

Code Highlights

Data Structure

typedef struct student {
    int roll;
    char name[30];
    float mark;
    struct student* next;
} ST;

This structure represents a student record containing:

• roll: Unique roll number (auto-incremented).
• name: Name of the student.
• mark: Marks obtained by the student.
• next: Pointer to the next student record (used for the linked list).

Important Functions

1. Adding Records:

   int add_end(ST **ptr, int rn);

   Prompts the user to input name and marks for a new student and appends the record to the list.

2. Deleting Records:

   void delete(ST **ptr);

   Deletes a record based on the roll number or name.

3. Sorting Records:

   void sort(ST *ptr);

   Sorts the records by name or marks using bubble sort.

4. Saving Records:

   void save(ST *ptr);

   Saves all records to a file student.dat in plain text format.

5. Reversing Records:

   void reverse(ST *ptr);

   Displays the records in reverse order.

---

File Operations

• Records are saved to student.dat using the save() function.
• The file format is:

  RollNo   Name   Marks
  1        Alice  85.5
  2        Bob    78.0
  

---

Future Improvements

1. Add functionality to load records from a file at startup.
2. Implement error handling for file operations.
3. Enhance the sorting algorithm for scalability.
4. Add a graphical user interface (GUI).

---

Contribution

Feel free to fork the repository, raise issues, or submit pull requests to improve this project.

---