What is the difference between a stored procedure and a view?

sql

views

stored-procedures

database-performance

byAnton Shumikhin·Jan 23, 2025

A stored procedure is a programmable function in SQL. It allows you to conduct complex operations, modify data and handle intricate logic with parameters:

-- Eat, Pray, Love, Code
EXEC GetEmployeeDetails @EmployeeID;

On the flip side, a view is a pre-stored query you might call a virtual table. It’s perfect for untangling complicated queries, but it doesn't actually modify data:

-- The Matrix has Active Employees!
SELECT * FROM ActiveEmployees;

Deeper understanding: Views versus stored procedures

You can use views and stored procedures simultaneously or separately, depending on your needs. While both work to abstract and encapsulate SQL logic, their use cases dramatically differ. A view acts as a read-only snapshot into your data while a stored procedure is used for intricate read-write operations.

Performance and security: the double duty

Properly applied, both views and stored procedures enhance database performance and security. Views readily provide data while obscuring the originating complexity. In contrast, stored procedures can provide pre-compiled execution plan utilization, leading to better performance efficiency.

Views vs. Stored Procedures: Dual wield your SQL weaponry

Asking whether to use a view or stored procedure is like choosing between a shield and a sword - it really depends on your situation. Views serve as protective barriers, helping to simplify data access. In contrast, stored procedures are your offensive arsenal, providing an array of options for data interactions.

Tips and best practices for using stored procedures

For successful sword swinging with stored procedures, remember these tips:

Caching execution plans: Stored procedures are compiled and their execution plans are saved the first time they run. Future calls can reuse this plan and avoid recalculation.
Parameter validation: Unexpected user input is like pineapple on pizza - some love it, most don't. Validate input parameters to stay safe.
Easier debugging: Complex procedures can be as twisty as spaghetti. Break them down into manageable chunks.

Better data access with views

When using views to shield your data:

Creating indexed views: Indexed views can speed up read operations on mass data.
Security control: Use views to control user access to sensitive data. It's like keeping the secret ingredient... well, secret.
Data presentation: Views mask the complexity of database schemas, presenting data in a user-friendly manner.