SQL Performance

Understanding CROSS APPLY and OUTER APPLY in SQL Server

Introduction When working with table-valued functions (TVFs) or subqueries, the CROSS APPLY and OUTER APPLY operators provide flexible […]

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Improving the Performance of UPDATE Statements in SQL Server

Introduction Performing bulk updates in SQL Server can be a resource-intensive operation, particularly when dealing with large datasets. […]

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SQL Window Functions Series: LAG() and LEAD()

In the realm of data analysis, being able to understand the relationships between sequential data points is paramount. […]

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