How to Use Sort Operator in Kusto | Kusto Query Language Tutorial (KQL)

 Topic: How to Use Sort Operator in Kusto Query Language 

How to use Sort Operator in Kusto Query | Kusto Query Language Tutorial (KQL) In this article we are going to learn about the sort operator in a Kusto Query Language, sort the rows of input table into order by one or more columns that's what the sort operator does for us. Kusto Query language is a powerful tool for exploring your data and discovering patterns, identifying anomalies and outliers, creating statistical modeling, etc. The query uses schema entities that are organized in a hierarchy similar to SQL's: databases, tables, and columns. A Kusto query is a read-only request to process data and return results. The request is stated in plain text, using a data-flow model that is easy to read, author, and automate. Kusto queries are made of one or more query statements.

 // Sort Command : Sort the rows of the input table into order by one or more columns.  
   
 .clear table TotalSale data   
 .create table TotalSale (  
   id: int   
   ,SalePersonFName: string  
   ,SalePersonLName : string  
   ,ProductName : string  
   ,ItemsSold : int  
   ,SoldPrice :real  
   ,SoldDate: date  
   ,City : string  
   ,State : string  
   ,Country : string  
   ,Region : string  
   )  
        
      //Insert data  
       .ingest inline into table TotalSale <|  
 11,Tamara,Tony,Cell Phone,2,1200,2015-03-03,Frankfurt,Hesse,Germany,Europe  
 9,Petra,Henry,TV,10,5000,2015-04-08,Paris,Île-de-France,France,Europe  
 3,Christy,Ladson,TV,3,1600,2015-04-02,High Point,NC,USA,North America  
 7,Chirag,Patel,Cell Phone,5,1500,2015-06-23,AhmadAbad,Gujrat,India,Asia  
 2,M,Raza,Cell Phone,2,800,2015-07-15,Charlotte,NC,USA,North America  
 5,Najaf,Ali,Computer,1,300,2015-06-20,Karachi,Sindh,Pakistan,Asia  
 6,Sukhjeet,Singh,TV,2,900,2015-06-21,ChandiGar,Punjab,India,Asia  
 4,John,Rivers,Laptop,5,2400,2014-03-09,Jersey City,NJ,USA,North America  
 8,Aleena,Aman,Laptop,2,800,2015-05-25,Lahore,Punjab,Pakistan,Asia  
 10,Rita,Roger,Laptop,7,2100,2015-04-11,Paris,Île-de-France,France,Europe  
 1,Aamir,Shahzad,TV,1,700,2015-07-15,Charlotte,NC,USA,North America  
 12,aamir,Shahzad,TV,1,7000,2015-07-15,Charlotte,NC,USA,North America  
 id=Null,bisma,Roger,Laptop,7,2100,2015-04-11,Paris,Île-de-France,France,Europe  
   
 //By Default sort by is desc  
 TotalSale  
 | project SalePersonFName,SalePersonLName,ProductName  
 | sort by SalePersonFName   
   
   
 //use asc  
 TotalSale  
 | project SalePersonFName,SalePersonLName,ProductName  
 | sort by SalePersonFName asc  
   
 //use asc and desc together for multiple columns  
 //use asc  
 TotalSale  
 | project SalePersonFName,SalePersonLName,ProductName  
 | sort by SalePersonFName asc,SalePersonLName desc  
   
   
 // How to handle case senstive in sorting  
 //use asc  
 TotalSale  
 | project SalePersonFName,SalePersonLName,ProductName  
 | sort by tolower(SalePersonFName) asc // notice about lower case , tolower() or toupper() function can help  
   
   
 //Show Null values first  
 TotalSale  
 | project SalePersonFName,SalePersonLName,ProductName,id  
 | sort by id asc nulls first // Show Null values first   
   
   
 //If you want to exclude Null values   
 TotalSale  
 | where isnotnull(id)   
 | project SalePersonFName,SalePersonLName,ProductName,id  
 | sort by tolower(SalePersonFName) asc  

Video Demo: How to Use Sort Operator in Kusto | Kusto Query Language Tutorial (KQL)