How to Create Single or Multiple Tables in Single Statement by using Kusto | Kusto Query Tutorial

 Topic: How to Create Single or Multiple Tables in a Single Statement by Using KUSTO Query.

How to create single or multiple tables in a single file statement by using Kusto Query | Kusto Query Language Tutorial (KQL) Kusto Query Language is a powerful tool to explore your data and discover patterns, identify anomalies and outliers, create statistical modeling, and more. 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.

 //.create-merge table  
 // This can be used to create new table. If table does exists then it will add the new columns if specified columns already  
 // does not exist in the table. If you will specify a column with the different data type, then the command will fail. this commend does not   
 // drop columns if not mentioned in column list.  

 .create-merge table Customer(CustomerId:int ,CustomerName:string,  
 CustomerAddress:string,  
 Age:int)  
 with (docstring="this is Customer Table",folder ="CustomerData")  

 //Let's check the definition of table  
 .show table Customer schema as json   

 // add one row data  
 .ingest inline into table Customer <|  
 100,Aamir,SomeAddress,43  

 // check data  
 Customer  

 // let's rerun and add one more column, phonenumber:string, add add new docstring and move to new folder  
 .create-merge table Customer(  
 CustomerId:int ,  
 CustomerName:string,  
 CustomerAddress:string,  
 Age:int,  
 phonenumber:string)  
 with (docstring="Customer table new definition",folder ="CustomerData1")  


 //Let's check the definition of table  
 .show table Customer schema as json   

 // Show list of tables  
 .show tables  

 // check the data  
 Customer  


 //.create-merge tables : Let you create multiple table in single command  
  .create-merge tables  
  CustomerAsia (Name:string, dob:datetime, UserId:string),  
  CustomerEurope (Name:string, dob:datetime, UserId:string,Region:string)  

  //check all tables  
  .show tables  

Video Demo: How to Create Single or Multiple Tables in Single Statement by using Kusto Query Language