US Patent 11250014 Generating previews of possible join relationships

An approach is provided in which the approach receives a user selection that selects a first column in a first database table and a second column in a second database table. The approach creates multiple visualizations based on the user selection that are each based on actual data extracted from both the first database table and the second database table. In turn, the approach displays each of the multiple visualizations concurrently on a display.