SQL Server Real-World Projects: ERP Database

Design a Simple ERP Schema

Create tables for Customers, Products, Orders, and OrderDetails with appropriate keys and relationships.

Expected output: A normalized database schema diagram or SQL CREATE TABLE scripts.

Hint: Focus on primary and foreign keys to enforce relationships.

Write a Stored Procedure for Order Insertion

Implement a stored procedure that inserts an order and its details, updating inventory quantities within a transaction.

Expected output: A working stored procedure script that maintains data consistency.

Hint: Use TRY...CATCH for error handling and SCOPE_IDENTITY() to get the inserted OrderID.

Key considerations include understanding business modules, designing normalized tables with proper keys and constraints, implementing stored procedures for business logic, ensuring data integrity with transactions, and addressing performance and security.

Stored procedures encapsulate business logic within the database, promote code reuse, improve security by controlling data access, and help maintain data integrity through transactions and error handling.

Normalization reduces data redundancy, ensures data integrity, and simplifies maintenance, which is crucial for the complex and interrelated data in ERP systems.