SQL LAG Function Explained in Hindi | Window Functions for Data Analysis

Learn how to easily compare current and previous month revenue using the SQL LAG() window function!

Is short tutorial mein hum dekhenge ki SQL mein LAG() function ka use karke previous row ka data kaise fetch karte hain. Window functions data analysis aur SQL interviews ke liye sabse important topics mein se ek hai. Hum ek practical example ke saath samjhenge ki OVER() aur ORDER BY clause ke saath LAG function ko kaise apply kiya jata hai.

Topics Covered in this Video:

What is the LAG() Window Function in SQL?

How to fetch previous month's revenue data.

Using OVER() and ORDER BY clauses.

Practical Data Analysis example for beginners.

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SQL LAG function, SQL window functions, SQL in Hindi, data analysis SQL, previous month revenue SQL, SQL tutorial for beginners, advanced SQL queries, SQL interview questions, lag function example.

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