The 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 c.InvoiceNumber, o.LineAmount, o.LineType, o.TaxRate FROM Invoices c INNER JOIN InvoicesInvoiceLines o ON c.InvoiceId = o.InvoicesInvoiceId

Left Join

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

 SELECT c.InvoiceNumber, o.LineAmount, o.LineType, o.TaxRate FROM Invoices c LEFT JOIN InvoicesInvoiceLines o ON c.InvoiceId = o.InvoicesInvoiceId