asp.net core docker Rank and Dense Rank in SQL Server

rank and dense_rank example
difference between rank and dense_rank with example
rank vs dense_rank in sql server 2008
sql server difference between rank and dense_rank

In this video we will discuss Rank and Dense_Rank functions in SQL Server

Rank and Dense_Rank functions
Introduced in SQL Server 2005
Returns a rank starting at 1 based on the ordering of rows imposed by the ORDER BY clause
ORDER BY clause is required
PARTITION BY clause is optional
When the data is partitioned, rank is reset to 1 when the partition changes

Difference between Rank and Dense_Rank functions
Rank function skips ranking(s) if there is a tie where as Dense_Rank will not.

For example : If you have 2 rows at rank 1 and you have 5 rows in total.
RANK() returns - 1, 1, 3, 4, 5
DENSE_RANK returns - 1, 1, 2, 3, 4

Syntax :
RANK() OVER (ORDER BY Col1, Col2, ...)
DENSE_RANK() OVER (ORDER BY Col1, Col2, ...)

RANK() and DENSE_RANK() functions without PARTITION BY clause : In this example, data is not partitioned, so RANK() function provides a consecutive numbering except when there is a tie. Rank 2 is skipped as there are 2 rows at rank 1. The third row gets rank 3.

DENSE_RANK() on the other hand will not skip ranks if there is a tie. The first 2 rows get rank 1. Third row gets rank 2.

SELECT Name, Salary, Gender,
RANK() OVER (ORDER BY Salary DESC) AS [Rank],
DENSE_RANK() OVER (ORDER BY Salary DESC) AS DenseRank
FROM Employees

RANK() and DENSE_RANK() functions with PARTITION BY clause : Notice when the partition changes from Female to Male Rank is reset to 1

SELECT Name, Salary, Gender,
RANK() OVER (PARTITION BY Gender ORDER BY Salary DESC) AS [Rank],
DENSE_RANK() OVER (PARTITION BY Gender ORDER BY Salary DESC) AS DenseRank
FROM Employees

Use case for RANK and DENSE_RANK functions : Both these functions can be used to find Nth highest salary. However, which function to use depends on what you want to do when there is a tie. Let me explain with an example.

If there are 2 employees with the FIRST highest salary, there are 2 different business cases
1. If your business case is, not to produce any result for the SECOND highest salary, then use RANK function
2. If your business case is to return the next Salary after the tied rows as the SECOND highest Salary, then use DENSE_RANK function

Since we have 2 Employees with the FIRST highest salary. Rank() function will not return any rows for the SECOND highest Salary.
WITH Result AS
( SELECT Salary, RANK() OVER (ORDER BY Salary DESC) AS Salary_Rank FROM Employees
)
SELECT TOP 1 Salary FROM Result WHERE Salary_Rank = 2

Though we have 2 Employees with the FIRST highest salary. Dense_Rank() function returns, the next Salary after the tied rows as the SECOND highest Salary
WITH Result AS
( SELECT Salary, DENSE_RANK() OVER (ORDER BY Salary DESC) AS Salary_Rank FROM Employees
)
SELECT TOP 1 Salary FROM Result WHERE Salary_Rank = 2

You can also use RANK and DENSE_RANK functions to find the Nth highest Salary among Male or Female employee groups. The following query finds the 3rd highest salary amount paid among the Female employees group

WITH Result AS
( SELECT Salary, Gender, DENSE_RANK() OVER (PARTITION BY Gender ORDER BY Salary DESC) AS Salary_Rank FROM Employees
)
SELECT TOP 1 Salary FROM Result
WHERE Salary_Rank = 3 AND Gender = 'Female'

Text version of the video
http://csharp-video-tutorials.blogspo...

Slides
http://csharp-video-tutorials.blogspo...

All SQL Server Text Articles
http://csharp-video-tutorials.blogspo...

All SQL Server Slides
http://csharp-video-tutorials.blogspo...

All Dot Net and SQL Server Tutorials in English
https://www.youtube.com/user/kudvenka...

All Dot Net and SQL Server Tutorials in Arabic
https://www.youtube.com/c/KudvenkatAr...

asp.net core docker Rank and Dense Rank in SQL Server
513 Likes	513 Dislikes
95,222 views views	524K followers
Education	Upload TimePublished on 1 Oct 2015

Related keywords

wcf vs web api,ado.net core,sql server management studio,webkinz,webadvisor,craigslist nj,wcf one piece,asp.net core 3,ajax players,weber grill parts,webtoon,tutorials by hugo,csharp corner,mvc design pattern,asp.net machine account,servers for minecraft,asp.net core dependency injection,ado.net tutorial,services angular,ajax ontario,asp.net mvc tutorial,asp.net cos'è,csharp assembly,tutorialspoint python,sql join,services briefcase,asp.net core web api,ajax jquery,wccftech,craigslist ny,asp.net zero,csharp foreach,server memes,sql date format,services online,chase,serverless architecture,server resume,wcf c#,server books,tutorialspoint javascript,mvcc connect,ado.net mysql,services technologies gps,ajax deadpool,server jobs,cvs,website,mvc tutorial,costco hours,wcf service application,tutorialspoint spring,serverless,wcf soap,wcf cat,cool math games,wcf test client,services & training hse colombia sas,servicestack,citibank,asp.net core identity,sql union,ajax parking,sql database,asp.net core logging,mvconnect,cunyfirst,asp.net guida,wcf nba,csharp download,wcfi foundation,csharp online,wcf authentication,tutorials near me,http://asp.net,server 2019,chernobyl,ado.net descargar,web of dreams,serverminer,ajax cleaner,ado.net visual studio 2019,webassign,ado.net vs entity framework,ado.net visual studio 2017,csharp list,sql like,asp.net mvc,asp.net core tutorial,sqlite,wcfm,ajax roster,mvc architecture,http://ado.net,asp.net core mvc,ajax soccer,server hosting,wcfi,ajax dish soap,capital one,server rack,tutorialspoint html,csharp interface,craigslist,webroot,tutorialspoint reactjs,ajax request,wcf dragon ball,asp.net core 2.2,tutorialspoint python 3,sql developer,webster,services transmission company sas,sql group by,asp.net core signalr,services manager,mvc framework,ajax paving,mvc near me,tutorialspoint spring boot,mvc map,csharp online compiler,asp.net download,sql between,ado.net c# pdf,services tag dell,wcf 2019 nba,csharp switch,ado.net ventajas y desventajas,csharpstar,wcf tutorial,tutorialspoint,ajax meaning,csharp-video-tutorials.blogspot,tutorials dojo,central park 5,csharp string format,ado.net c#,asp.net core github,server status,ajax fc,server jobs nyc,asp.net core swagger,sql formatter,credit karma,services group,server error in '/' application,services windows,asp.net core 3.0,sql injection,tutorialspoint c#,wcf ria services,calculator,ado.net entity data model,sql insert,tutorialspoint tableau,services google play apk,sqlyog,asp.net core 3 release date,sql server,server job description,tutorials by a,servicenow,webcam,mvc hours,webmd symptom,csharp array,csharp enum,ajax call,asp.net core 2. guida completa per lo sviluppatore,asp.net core,server pro,server status ffxiv,cheap flights,webcrims,asp.net core hosting,services sas,tutorialspoint java,tutorialspoint java compiler,webmd,csharp to json,college football,ado.net dataset,csharp dictionary,cnn,website builder,tutorialspoint sql,asp.net web api,server side rendering,weber grills,sql server 2017,tutorialspoint spark,mvc nj,ado.net oracle,asp.net core download,csharp to vb.net,webster bank,webstaurant,tutorialsystems,ajax post,services fms publish announcement,services.msc no abre,ajax jersey,csharp operator,asp.net core razor pages,server duties,asp.net core environment variables,csharp random,century 21,services consultores,services consulting,mvcsd,services.msc,mvcsc,ado.net pdf,asp.net core configuration,ajax marvel,sql update,asp.net tutorial,mvc medical,ado.net entity data model visual studio 2019,wcfs international curriculum,mvc2,ado.net entity data model visual studio 2017,chase online,wcf api,costco,server jobs near me,webex,sql meaning,sql tutorial,sql commands,ado.net entity framework,ajax tavern,tutorialsteacher,ajax javascript,services desk,ajax greek,csharp tutorial,mvc pattern,ado.net sql server,ado.net connection,asp.net identity,mvcu,asp.net core middleware,wcf web service,mvc webadvisor,web store,mvcc,webmail,mvci,mvctc,