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IUIndira Unnikrishnanlearnandlead.hashnode.dev

Mastering SQL Server Window Functions – Concepts

Aug 25, 2025 · 4 min read · SQL Server window functions are essential for analytics, reporting, and business intelligence. They allow you to perform calculations across sets of rows while retaining row-level detail. In this article, we’ll explore the most important window funct...

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MJMorteza Jangjoojangjoo.hashnode.dev

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Mastering LAG and LEAD in SQL Server

Aug 12, 2025 · 3 min read · When analyzing data in SQL Server, you often need to look at values from previous or next rows — for example, to calculate trends, compare sales over time, or detect changes in a sequence. Two powerful window functions, LAG() and LEAD(), make this in...

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Mastering SQL Server Window Functions – Concepts

Mastering LAG and LEAD in SQL Server