I believe you are looking for something like this.
First you can get data table row names and do a for each loop on that, this feeds into the get data table row node and finally add the results to an array that you could easily work with.
Example of what you could do on begin play. You could also instead of adding it to an array at the end (which you need to plug the array you make into): break the out row struct and do calculation on the data first before adding it to the array or not adding it and jut making a decision on it. Its really up to you want you want to do.
