SQL LAG Window Function - Detailed Explanation with Code Examples

Опубликовано: 27 Февраль 2025
на канале: TechEngineerSchool

Detailed step by step walkthrough of SQL LAG Window Function. It includes syntax explanation as well as 5 examples and a REALWORLD USE-CASE.

SQL LAG Window Function Blog -- https://www.techengineerschool.com/bl...

SQL LEAD Window Function Blog - https://www.techengineerschool.com/bl...

SQL LEAD Window Function Video -    • SQL LEAD WINDOW FUNCTION - [Detailed ...

SQL Window Function Playlist -    • SQL Window Function

SQL Playlist -    • SQL

Install SQLite Blog - https://www.techengineerschool.com/bl...

Install SQLite Video -    • How to Install SQLite on Windows and Mac

How to use SQLite Blog - https://www.techengineerschool.com/bl...

How to use SQLite Video -    • How to Use DB Browser for SQLite (Abs...
------------------------------------------------------------------------------------------------------
Timestamps

00:00 - Introduction - SQL LAG Window Function
00:42 - What we will cover today
01:29 - SQL LAG Window Function Definition
02:00 - SQL LAG vs SQL LEAD window Function
02:58 - How to follow along and execute SQL
3:39 - SQL LAG Window Function SYNTAX Explained
7:45 - LAG Window Function Code Example
10:10 - Use Offset of 2 - LAG Window Function Code Example 2
11:30 - Use Offset of 5 - LAG Window Function Code Example 3
12:34 - SQL LAG Window Function is [[not Order Dependent]]
13:39 - Window Function Partitioning - LAG Window Function Code Example 4
16:42 - Replace “Default Value” with String or Number - LAG Window Function Code Example 5
19:32 - LAG Window Function USE CASE - LAG Window Function Code Example 6
22:52 - Get access to my free technical resources
------------------------------------------------------------------------------------------------------

If you want to run these queries on your local computer,

Download the Employees Database when you sign up to get access to my FREE technical resources - https://www.techengineerschool.com/co..., you will get access to this database as well as other databases.

------------------------------------------------------------------------------------------------------------

Follow me on Youtube -    / evidencen
Follow me on Linkedin -   / evidencen
Follow me on Github - https://github.com/evidenceN/
Follow me on Twitter -   / evidencenmedia

If you want to contact me, speak to me here - https://www.techengineerschool.com/su...

Want me to create a similar technical content for your brand? Contact me here. - https://www.techengineerschool.com/da...

Want to get updates everytime I publish new content? Join my FREE Technical Newsletter - https://www.techengineerschool.com/f/...