…in addition, I find the “DB Table Selector” node very picky regarding the Database connection: Very often, it may (1) neither be executed via “F7”, nor (2) is it possible to configure the node (The dialog cannot be opened for the following reason: Database connection is not available) if an unconfigured/unexecuted “DB SQL Executor” or “DB Table Ceator” is connected before the DB Table Selector. If I manually start / execute the precedessor nodes, it works fine.
It might be nice, if the “DB Table Selector” node would be less strict regarding the unexectued predecessors so you can execute it right away.