The CData Cmdlets PowerShell Module for xBase 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 a.Name, o.CloseDate FROM Accounts a, Opportunities o WHERE a.Id = o.AccountId

Left Join

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

SELECT a.Name, c.FirstName, c.LastName FROM Accounts a LEFT JOIN Contacts c ON a.Id = c.AccountId