Is Upsert the Most Efficient Way to Combine INSERT and UPDATE in a Stored Procedure?

Efficient Approach for Combining Insert and Update in a Stored Procedure

Your concern regarding the efficiency of your stored procedure is valid. You've opted to perform an update first and fallback to an insert if the update affects zero rows. This approach eliminates the need for an additional explicit select statement prior to the update, optimizing the process.

Upsert/Merge: The Optimal Solution

Your approach aligns with the industry standard known as upsert or merge. This technique seamlessly handles both updates and inserts within a single stored procedure, eliminating the need for separate existence checks.

Benefits of Upsert

Upsert offers the following advantages:

• Reduced I/O operations by eliminating unnecessary reads.
• Simplified codebase by avoiding conditional branching based on row count.
• Guaranteed data consistency by performing the operation in a single atomic transaction.

Additional Resources

For further insights into the upsert pattern, consider exploring the following resources:

• [SQLServerCentral: Importance of UPSERT](https://www.sqlservercentral.com/articles/Importance-of-UPSERT)
• [Stack Overflow: Safely merging rows in SQL Server](https://stackoverflow.com/a/3054327/1609598)

To ensure the safe and reliable implementation of the upsert pattern, it is important to address potential pitfalls such as concurrency and deadlocks. Consult the linked resources for more detailed information.

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