Lead / Lag Function in SQL | SQL Tutorial

Dive into the world of predictive power with LEAD and LAG functions in SQL. This video equips you with the skills to unlock the potential of these functions, allowing you to access and utilize data from previous or upcoming rows within your queries.

This video empowers you with the following:

The core concepts of LEAD and LAG: Grasp how LEAD retrieves data from subsequent rows, while LAG fetches data from previous rows, offering valuable insights into temporal relationships within your data.

Using LEAD and LAG in SELECT statements: Learn how to leverage these functions to access and incorporate data from neighboring rows within your query results.

Combining with other functions: Explore using LEAD and LAG in conjunction with functions like SUM, AVG, and MAX for even more powerful data analysis and manipulation.

Advanced techniques: Discover how to specify offsets for LEAD and LAG, handle NULL values, and utilize windowing clauses for granular control.

Real-world applications: See how these functions are used in diverse fields like finance, marketing, and time series analysis to gain valuable insights from historical and predictive data.

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