KB310329: How to achieve attribute left outer join effect in MicroStrategy Web

Left outer join for attribute is  unavailable in Developer. For example, here are three tables in warehouse. Create three attributes named A, B, C, and after them added in a report in Developer, no data returns， as showed below.

This article is to introduce a workaround to achieve the attribute left outer join on Strategy Web. Steps are as below.

1. Create three reports named A (with attribute A), A&B (with attribute A and B),A&C (with attribute A and C)
2. Create a dashboard based on the three reports created in last step.
3. In the right corner of the dashboard, change the data source to none.