I created an external database to MySQL database, then created a schema to access the external database. I can see the data in the schema from the external database. But when I run the query activity in workflow, it will run for a long time, I can see the template table "wkf*****" was created in the MySQL data base, but the result will not return back to Adobe workflow. The query activity will run for a long time.
Do you know what is the reason of the issue? Is it the issue with Adobe or the external database?