Database schema for pharmacy management system

Designing a database schema for a pharmacy management system involves capturing information related to drugs, suppliers, customers, prescriptions, sales, and other relevant entities. Below is a basic example of a database schema for a pharmacy management system.

Entities:

  1. Drug:

    • DrugID (Primary Key)
    • DrugName
    • Manufacturer
    • ExpiryDate
    • StockQuantity
    • UnitPrice
    • Dosage
    • Description

  2. Supplier:

    • SupplierID (Primary Key)
    • SupplierName
    • ContactPerson
    • PhoneNumber
    • Email

  3. Customer:

    • CustomerID (Primary Key)
    • FirstName
    • LastName
    • Address
    • PhoneNumber
    • Email

  4. Prescription:

    • PrescriptionID (Primary Key)
    • CustomerID (Foreign Key referencing Customer table)
    • IssueDate
    • ExpiryDate

  5. PrescriptionDetail:

    • DetailID (Primary Key)
    • PrescriptionID (Foreign Key referencing Prescription table)
    • DrugID (Foreign Key referencing Drug table)
    • Quantity

  6. Sale:

    • SaleID (Primary Key)
    • CustomerID (Foreign Key referencing Customer table)
    • SaleDate
    • TotalAmount

  7. SaleDetail:

    • DetailID (Primary Key)
    • SaleID (Foreign Key referencing Sale table)
    • DrugID (Foreign Key referencing Drug table)
    • Quantity
    • UnitPrice
    • Subtotal

  8. StockTransaction:

    • TransactionID (Primary Key)
    • DrugID (Foreign Key referencing Drug table)
    • TransactionType (e.g., purchase, sale, adjustment)
    • TransactionDate
    • Quantity
    • RemainingStock

This schema covers the basic entities needed for a pharmacy management system. Here are some explanations:

  • Drugs represent the medications available in the pharmacy, with details such as name, manufacturer, expiry date, stock quantity, unit price, dosage, and description.
  • Suppliers provide drugs to the pharmacy, and their information is stored in the Supplier table.
  • Customers have personal information stored, and they can have prescriptions and purchase drugs.
  • Prescriptions are associated with customers and contain details such as the issue date and expiry date.
  • PrescriptionDetail links drugs to prescriptions, specifying the quantity.
  • Sales capture information about customer purchases, including the sale date and total amount.
  • SaleDetail links drugs to sales, specifying the quantity, unit price, and subtotal.
  • StockTransaction records changes in stock quantity due to purchases, sales, or adjustments.

Depending on the specific requirements of your pharmacy management system, you may need to expand or modify this schema. Consider additional features such as user authentication, inventory tracking, supplier performance tracking, or any other information relevant to your pharmacy management platform.