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h2. Introduction
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In this tutorial, we will walk through setting up an Intersect sub query. A good way to think about *Intersects* is - use them if you need a list of something that appears in two seperate lists.

In this scenario our main report will have a list of athletes that attended camps in the current year. We will then create a list of athletes from the previous year, and only return a list of athletes that are in both. This will effectively give us a list of athletes that are return customers from last year.

h2. Initialise
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*1.* Click on the *Create* link and select *Report* to begin building your report.
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*2.* You should now be on the Initialise Report page. Select the *Drag and Drop Builder* as the build tool.
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*3.* Select *Ski Team* as the View.
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h2. Master Query
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*4.* Drag and drop the !rpt_dim.png! *Athlete ID*, !rpt_dim.png! *First Name*, !rpt_dim.png! *Last Name*, and !rpt_dim.png! *Date of Birth* dimensions into the *Columns* list.

*5.* Drag and drop the !rpt_dim.png! *Year* dimension into the *Filters* list.
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h2. Intersect Query
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h3. Create Intersect
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*6.* Click on the *+* button in the Sub Query panel to the left of the Data step to add a Sub Query.

*7.* Set the Type to *Intersect* and Style to *Basic*.

*8.* Click *Ok* to set up the query.
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h3. Configure Intersect
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*9.* Set the *Filter* on the *Master Query* to apply to the *Athlete ID* field. This is how rows to be used from the master query will be located, matching the ID field.

*10.* Set the *To Match* field on the *Sub Query* to be the *Athlete ID* field. This will list all Athete ID values to be matched to the master query.

*11.* Drag the *Year* field into the *Sub Query Filters* list. This will be used to restrict the list of Athlete IDs to a certain date range.

*12.* Change the name of the Sub Query to *Last Year*.

*13.* Click *Save* to complete the *Intersect*.
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h3. Edit Settings
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*14.* If you need to make changes to your sub query setup at all, click the *Edit Settings* link.
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h2. Apply Filters
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*15.* Click on the *Settings* link in the *Filters* panel. This will allow you to configure logic and values for both filters.
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h3. Master Filter
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*16.* Set the *Master Query* filter to be Year *Between* 

*17.* Click the *Define Value* link and select the *Pre-defined Period* option.

*18.* Select the *This Calendar Year* option and click the *Submit* button.
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h3. Sub Query Filter
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*19.* Navigate to the sub query filter by clicking on the *Prior Years* tab.

*20.* Set the filter to be filter to be Year *Between*

*21.* Click the *Define Value* link and select the *Pre-defined Period* option.

*22.* Select the *This Calendar Year* option and click the *Submit* button.

*23.* Close the Configure Filters panel.
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h2. Save
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*24.* Click *Report* > *Save* to activate your report.
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*25.* Set the *Name* of your report to *Intersect Sub Query Tutorial*.

*26.* Set the *Description* to *This report was written using the Sub Query Tutorial*.

*27.* Select *Tutorial* as the *Category*.

*28.* Select *Training* as the *Sub Category*.

*29.* Click *Activate* to finish.
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*30.* You now have an active Intersect Sub Query report. 
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