JOIN Queries
The Amazon DynamoDB 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 i.Amount, c.CustomerName FROM Invoices i, Customers c WHERE i.CustomerName = c.CustomerName
Left Join
A left join selects all rows in the FROM table and only matching rows in the JOIN table:
SELECT i.Amount, c.CustomerName FROM Customers c LEFT JOIN Invoices i ON i.CustomerName = c.CustomerName