Problem Using SQL Server BI Development Studio

Hello

I'm using SQL Server BI Development Studio to create a mining structure to forecast time series analysis.
The process to create a model for time series has these steps:
Create a connection to the Database;
Create a source view. Create relationships between tables using the foreign keys;
Create the model with the mining structure. Define the fields that I won€™t to predict and the algorithm properties aren€™t changed.
Is something wrong in these steps, I missing something?
Other problem is the utilization of the model created earlier. In some tests that I made, the models don€™t do forecasting upper then 20 steps. The problem could be the number of lines? But other data set with a large number of null values doesn€™t have any problem predicting more than 20 steps using the time series algorithm.

Can someone help me?

Thanks in advance.

João Santos


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