In this article we are going to show you, How to create OLAP cube in SQL Server Analysis Services (SSAS) using cube Wizard.
Cube is a combination of Measures (Derived, Calculated Measures) and Dimensions, calculations, perspectives, actions, partitions, key performance indicators (KPIs) and translations.
Create OLAP Cube in SQL Server Analysis Services
Within the Solutions Explorer, Right click on the Cube folder will open the context menu. Select New Cube option as shown in below screenshot.
It will open the Cube wizard with the welcome page. If you don’t want to see this welcome page again check the Don’t show this Page again option below.
Click next button
Select Creation Method
Within the cube wizard this page will give you 3 options to choose
- Use Existing Tables: If you select this option, then cube will use the existing tables in the Data Source View.
- Create an Empty Cube: This option will create an empty cube with no Measures and Empty Dimensions. After completing the cube creation we have to add them one by one.
- Generate Tables in the Data Source: It will generate tables in the Data Source directly.
It is always better to choose the option (Create an Empty Cube), that’s what I did in my experience and I hope this is the best approach for any developer. Click on Next Button
Select the Data Source View
This page is used to select the Data Source View for our Empty cube. Here we can select the data source if we already created or else we can select none and later we can create and use it. Again its developer’s choice but it is always good practice to create the data source and data source views at the beginning.
Here we are selecting the Data Source View we created in the previous article. Please refer SSAS Data Source View article to understand How to create the Data Source View in SSIS
Click Next button and rename the cube as per your requirement.
Click finish button to complete the cube creation.
Lets look at our Solution Explorer to check for newly created Cube.
Creating Cube Using Existing Tables
Here we are selecting the Existing Tables option to show you, How this gone work.
Click on the Next button
Select Measure Group Tables
Select the already created (existing) Data Source View. Here also we are selecting the Adventure Works DW2014, which we created in our previous article.
Now select the Measure Tables (Measure Groups or Fact tables) from the list of available tables in the data Source View.
Click next button.
Cube wizard will take you to next page to select the individual Measures from Measure Groups.
Here we selected some random Measures and click on Next button.
Select Existing Dimension
This page allows us to select the required dimensions for cube creation from the list of available dimensions
Click on next button and provide the cube name as per your organization requirements.
Click finish button and see whether we created the cube successfully or not
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