Training Decision Tree

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Thank you :) What I mean is that I have two datasets one to train the decision tree and one for its evaluation. I want to use that specific dataset to evaluate the decision tree and not one selected randomply from SQL Server. I am using C4.5 algorithm and I have a training dataset ans a test dataset. I want to use these two in SQL Server so I can compare the C4.5 algorithm with the decision tree algorithm of SQL Server(using entropy because C4.5 is an entropy based classifier).
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