Abstract: Modern scientific databases and web databases maintain large and heterogeneous data. These real-world databases contain hundreds or even thousands of relations and attributes. Traditional ...
Modern scientific databases and web databases maintain large and heterogeneous data. Traditional predefined query forms are not able to satisfy various ad-hoc queries from users on those databases.
Checks if a certain query has / doesn't have results. If the switcher 'Throw error if query has results' is not enabled, and selected query has no values - the ...
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