How to quickly match data of two recordsets in SQL Server?

When it comes to optimizing queries in T-SQL, comparing data between two recordsets is a common activity that demands an effective approach. This article gives a detailed explanation on how to quickly match data of two recordsets in SQL Server.

Given that it is a complex process, the article recommends using temporary tables or CTEs (Common Table Expressions) to store the recordsets before comparing them. In addition, it outlines different methods to match data such as using EXCEPT clause, JOIN keyword, and MERGE statement, while providing examples and explanations for each.

Whether you're a seasoned T-SQL expert or just starting out, this article serves as a helpful guide on how to optimize your queries for faster execution time.

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