depends on the intention of your question an the semantics of "table" in your question. If you are asking for an operator (that's how we call nodes
) which does datamining on more than one input table, then the answer is no. But you can easily load several external tables, e.g. excel sheets, csv files or database tables, and combine them within RapidMiner.
You should have a look at the following operators: Append, Join and all other operators which are contained in the Set Operations group.
If you have any further questions, don't hesitate to post them here.