Nov 18, 2025 · The following example demonstrates the LAG function. The query uses the LAG function to return the difference in sales quotas for a specific employee over previous calendar quarters.

This tutorial shows you how to use the LAG () function to access a row at a specific physical offset which comes before the current row.

Jul 5, 2024 · One of these powerful functions is the LAG() function, which is one of the commonly used window functions. It opens the door to comparing and calculating the change in values over a …

Jun 11, 2024 · The LAG () function – one of SQL’s window functions – is an important tool for planning and trend analysis. In this article, I’ll demonstrate how to include SQL LAG () in your queries using a …

Sep 13, 2025 · What is the SQL LAG () Function? The SQL LAG () function is a window function that allows us to retrieve the value of a column from a previous row in the result set. Unlike aggregate …

The SQL Server LAG function is one of the Analytic functions that acts precisely opposite to LEAD to perform advanced data analytics. It allows you to access the data or value from a previous row …

The LAG function in SQL is a dynamic window function that allows you to access the value of a column from the previous row within a defined window, making it ideal for tasks like analyzing trends, …

The SQL LAG () function is a powerful analytical function that allows you to access data from a previous row within a result set. Specifically, it allows you to retrieve data from a specified offset before the …

Learn SQL LEAD and LAG functions with clear examples. Access previous and next row values, compare records, and prepare for SQL interview questions with confidence.

Discover how to use the LAG () function in SQL with examples, common use cases, and error handling tips to optimize your queries.