SQL script with multiple DB data outputs - KNIME Analytics

I have a complicated sql query script, which I want to execute on several dbs output. But sql executor can take only one db data. Can someone help me with this?

DB Writer query output - KNIME Analytics Platform - KNIME Community Forum

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SQL script with multiple DB data outputs - KNIME Analytics Platform - KNIME Community Forum

DB Writer query output - KNIME Analytics Platform - KNIME Community Forum

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