DF031: Non-ANSI standard join is used.
Last modified: May 28, 2025
The topic describes the DF031 T-SQL code analysis rule.
Category
DEPRECATED
Message
Non-ANSI standard join is used.
Description
It is recommended to use the ANSI-standard join syntax and explicitly specify the type of join you are using.
Noncompliant code example
SELECT *
FROM dbo.Order o, dbo.OrderItems oi
WHERE o.OrderId=oi.OrderId
Compliant solution
SELECT *
FROM dbo.Order o JOIN dbo.OrderItems oi
ON o.OrderId=oi.OrderId
Was this page helpful?
Want to find out more?
Overview
Take a quick tour to learn all about the key benefits delivered by dbForge Studio for SQL Server.
All features
Get acquainted with the rich features and capabilities of the tool in less than 5 minutes.
Request a demo
If you consider employing this tool for your business, request a demo to see it in action.