Details

1. Now open the Modeler, where you will create an SQL view.

   Choose + in the navigation pane, name a name STAR_CUSTOMERS. The view type will remain SQL. Click Ok.

   

2. Click on SubSelect and place it on the canvas. Right click on it, choose Add Alias and call it CUSTOMER_INFO.

   

3. Double-click the CUSTOMER_INFO box to get into its edit screen. You should see the object reference changed to STAR_CUSTOMERS / CUSTOMER_INFO in the header.

   Now you want to select different attributes for the customers and for that you need to join CUSTOMER and CUSTOMER_GROUP. Therefore add CUSTOMER as data sources.

   

   Follow the same steps to add CUSTOMER_GROUP as a data source.

4. To create a join between these two tables, highlight the CUSTOMER table and click on the join symbol.

   

   Drag and drop it to CUSTOMER_GROUP table.

   

   The join window will pop up. Click on Propose condition and you see the common column between two tables are added as join condition. Please note that you accepted the default type of join which is INNER join. But you can change it by clicking on the arrow next to the Type depending on requirements.

   

   Notice the join symbol and a condition in the subselect view.

   

5. Choose CUSTOMER_ID, CUSTOMER_GROUP, LOCATION and CATEGORY_ABBREVIATION columns by clicking on the small circle next to each column name. The circle will become black once a column is selected. As well column names are added to Columns part of the view in the right pane.

   

6. Go back to your main view by clicking on the STAR_CUSTOMERS hyperlink in the header. Click on the Star pictogram on top of your subselect rectangle to add all selected columns to the output of the view. Save your work.

   

7. Click on SQL icon in the Modeler editor to open the generated SQL and copy the statement. Click Close

   

   Go back to the SQL Editor view and paste the generated SQL. Add second statement to select directly from the view. Click on Execute All button to run both statements.

   SELECT CUSTOMER_INFO.*  
   FROM  ( SELECT CUSTOMER_ID , CUSTOMER.CUSTOMER_GROUP , LOCATION , CATEGORY_ABBREVIATION  
   FROM  CUSTOMER
       INNER JOIN CUSTOMER_GROUP
       ON CUSTOMER.CUSTOMER_GROUP = CUSTOMER_GROUP.CUSTOMER_GROUP) CUSTOMER_INFO;
   
   SELECT * FROM STAR_CUSTOMERS
   

   The result of the last statement, ie. select from the view STAR_CUSTOMERS, is displayed in the Results pane.

   

   Now to see the results of the previous statement, click on the green field with the statement in the right pane. You will see as well corresponding statement highlighted in green in the editor window.

   

   Compare results of both statements.

Next Steps

• SAP Vora Modeler: Unions in SQL View