You can have as many as needed databases.
For example you might like to have one database using for your daily executions, but from time to time you might want to keep the results of some of these executions in a dedicated database( an official one). This way your official executions contain only the important info, no junk.
This page shows how to achieve this by copying a run from one database to another.
Select which run to copy
Specify the target database
Execute the copy process
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