User1724605321 posted
Hi JagjitSingh ,
For UPDATE, INSERT, and DELETE statements, the return value is the number of rows affected by the command. When a trigger exists on a table being inserted or updated, the return value includes the number of rows affected by both the insert or update
operation and the number of rows affected by the trigger or triggers. For all other types of statements, the return value is -1. If a rollback occurs, the return value is also -1.
Reference : https://docs.microsoft.com/en-us/dotnet/api/system.data.sqlclient.sqlcommand.executenonquery?view=netframework-4.7.2
Best Regards,
Nan Yu