https://github.com/mikaremi/sql_window_functions

Using window functions in SQL server
https://github.com/mikaremi/sql_window_functions

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Using window functions in SQL server

• Host: GitHub
• URL: https://github.com/mikaremi/sql_window_functions
• Owner: Mikaremi
• Created: 2024-08-17T08:31:25.000Z (6 months ago)
• Default Branch: main
• Last Pushed: 2024-08-17T08:46:29.000Z (6 months ago)
• Last Synced: 2024-08-17T09:43:14.009Z (6 months ago)
• Language: TSQL
• Size: 3.91 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# SQL_WINDOW_FUNCTIONS

Using window functions in SQL server

Window functions operate on a set of rows and return a single aggregated value for each row. The term Window describes the set of rows in the database on which the function will operate. We define the Window (set of rows on which functions operates) using an OVER() clause.

## Types of window functions.

* Aggregate Window Functions

(SUM(), MAX(), MIN(), AVG(). COUNT())

* Ranking Window Functions

(RANK(), DENSE_RANK(), ROW_NUMBER(), NTILE())

* Value Window Functions

(LAG(), LEAD(), FIRST_VALUE(), LAST_VALUE())