Hi.

I have accidentally loaded a lot of data by mistake and now I need to delete it. The catalog I have loaded has 30000+ records. When I am trying to select all data in catalog (ctrl+a) it seems like it will never end (I have waited 10 minutes and then stop process). How could I delete them rapidly? They are in the root part of catalog.

You can create a data processor that will select and delete all that data. If you want to make it even faster, you can use Object.Delete() method in this case. But make sure to have a backup any way.