To create a "hospital database" using MS-Access, we'll make the following assumptions for designing the database:

1. Entities:

   • Patients: Information about patients including their ID, name, date of birth, gender, contact details, and medical history.
   • Doctors: Details of doctors including their ID, name, specialization, contact information, and schedule.
   • Appointments: Records of appointments between patients and doctors, including appointment ID, patient ID, doctor ID, appointment date, and time.
   • Medical Records: Information about medical procedures, diagnoses, medications, and treatments associated with each patient's visit.
   • Departments: Details of different medical departments within the hospital, such as cardiology, pediatrics, orthopedics, etc.

2. Relationships:

   • Patients can have multiple appointments with different doctors over time, establishing a one-to-many relationship between Patients and Appointments.
   • Doctors can be associated with multiple appointments and may belong to one or more departments, establishing a many-to-many relationship between Doctors and Appointments, and a many-to-many relationship between Doctors and Departments.
   • Each appointment is associated with one patient and one doctor, establishing one-to-many relationships between Appointments and Patients, and between Appointments and Doctors.
   • Each medical record is associated with one patient and contains details of medical procedures, diagnoses, medications, and treatments, establishing a one-to-many relationship between Patients and Medical Records.

3. Tables:

   • Patients Table: Fields include PatientID, Name, DateOfBirth, Gender, ContactNumber, MedicalHistory.
   • Doctors Table: Fields include DoctorID, Name, Specialization, ContactNumber, Schedule.
   • Appointments Table: Fields include AppointmentID, PatientID, DoctorID, AppointmentDate, AppointmentTime.
   • Medical Records Table: Fields include RecordID, PatientID, Procedure, Diagnosis, Medication, Treatment.
   • Departments Table: Fields include DepartmentID, DepartmentName.

4. Data Integrity:

   • Implement primary keys for each table to ensure uniqueness and establish relationships between tables.
   • Use foreign keys to maintain referential integrity between related tables.
   • Apply data validation rules to ensure data accuracy and consistency.

By following these assumptions and designing the database accordingly, we can effectively manage hospital-related data in MS-Access.

Here's a C program that prompts the user with the given options and performs the corresponding actions after taking input from the user:

#include <stdio.h>

// Function to compare two numbers and return the larger one
int compareNumbers(int num1, int num2) {
    return (num1 > num2) ? num1 : num2;
}

// Function to check if a number is prime
int isPrime(int num) {
    if (num <= 1) {
        return 0; // Not prime
    }
    for (int i = 2; i * i <= num; i++) {
        if (num % i == 0) {
            return 0; // Not prime
        }
    }
    return 1; // Prime
}

int main() {
    int choice, num1, num2;

    // Prompt user with options
    printf("Choose an option:\n");
    printf("1) Compare two numbers for the larger\n");
    printf("2) Test a number for prime or not\n");
    printf("Enter your choice (1 or 2): ");
    scanf("%d", &choice);

    switch (choice) {
        case 1:
            // Input two numbers
            printf("Enter two numbers: ");
            scanf("%d %d", &num1, &num2);
            // Compare and print the larger number
            printf("The larger number is: %d\n", compareNumbers(num1, num2));
            break;
        case 2:
            // Input a number
            printf("Enter a number: ");
            scanf("%d", &num1);
            // Check if the number is prime and print the result
            if (isPrime(num1)) {
                printf("%d is a prime number.\n", num1);
            } else {
                printf("%d is not a prime number.\n", num1);
            }
            break;
        default:
            printf("Invalid choice. Please enter 1 or 2.\n");
    }

    return 0;
}

This program prompts the user with options to compare two numbers for the larger or test a number for being prime. After the user chooses an option, it asks the user to enter the required numbers and performs the corresponding operation.