Difference Between Dynamic SQL and Stored Procedures

Hello everyone! Welcome to SKLEARNING SQL Server Interview Shorts. In this video, we’ll break down the Difference Between Dynamic SQL and Stored Procedures in SQL Server. Understanding these distinctions is critical for designing secure, efficient, and maintainable database solutions.

✨ Key Takeaways:

Stored Procedures:

Cached in server memory, resulting in faster execution.
Help separate database logic from business logic.
Errors in database logic can be fixed by modifying the stored procedure without redeploying the application.
Produce less network traffic as only the procedure name and parameters are sent over the network.
Not vulnerable to SQL Injection attacks.
Dynamic SQL:

Compiled at runtime, which makes it slower compared to stored procedures.
Requires sending the entire query over the network, increasing traffic for complex queries.
Changes in queries require updates to application code, recompilation, and redeployment.
Vulnerable to SQL Injection without proper parameterization.
💡 Usage Recommendations:

Use Stored Procedures for performance, security, and maintainability.
Opt for Dynamic SQL when flexibility in query construction is essential.
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