SQL Server with Applications: Practical Examples

Create a Stored Procedure

Write a stored procedure that inserts a new product into a Products table with parameters for name, price, and category.

Expected output: A stored procedure that can be called with parameters to add a product.

Hint: Use CREATE PROCEDURE syntax and parameter declarations.

Implement a Transaction

Write a T-SQL script that transfers an amount between two bank accounts using a transaction.

Expected output: A script that safely transfers funds ensuring atomicity.

Hint: Use BEGIN TRANSACTION, COMMIT, and ROLLBACK statements.

Parameterize a Query

Modify a SQL query in your application code to use parameters instead of string concatenation.

Expected output: A secure query that prevents SQL injection.

Hint: Use parameter placeholders and bind values securely.

Applications connect to SQL Server using drivers like ADO.NET, JDBC, or ODBC, specifying connection strings with server and authentication details.

Stored procedures improve performance by reducing network traffic, enhance security by controlling access, and centralize business logic within the database.

Transactions ensure that a group of database operations either all succeed or all fail, maintaining data integrity and consistency.