The OneDrive Adapter supports standard SQL joins like the following examples.

Inner Join

An inner join selects only rows from both tables that match the join condition:

SELECT Files.name, SharedResources.shared_scope FROM Files, SharedResources WHERE Files.id=SharedResources.id

Left Join

A left join selects all rows in the FROM table and only matching rows in the JOIN table:

SELECT Files.name, SharedResources.shared_scope FROM Files LEFT OUTER JOIN SharedResources ON Files.id=SharedResources.id