JOIN Queries
The AdobeCommerce 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 Customers.Email, Orders.CreatedAt FROM Customers, Orders WHERE Customers.EntityId=Orders.CustomerId
Left Join
A left join selects all rows in the FROM table and only matching rows in the JOIN table:
SELECT Customers.Email, Orders.CreatedAt FROM Customers LEFT OUTER JOIN Orders ON Customers.EntityId=Orders.CustomerId