In this post, you’ll learn about the SQL error code 502 in InterSystems IRIS database the reason why you are receiving the TSQL message when using the InterSystems IRIS data platform
Error Code :
502
Reason for the Error code 502 in InterSystems IRIS DBMS
The SQL Debugging Interface (SDI) requires that SQL Server, when started as a service, must not log on as System Account. Reset to log on as user account using Control Panel.