Use Common Table Expressions (CTE) to write a query that displays the sum of all purchase orders and sum of all sales orders per each shipping method using the TotalDue column. All shipping methods must be displayed regardless of whether they have matching sales or purchases. Show the ShipMethodID, name, purchase orders total and sales orders total. Round all values to 2 decimal places. Hint: Use mutliple CTEs. Below is a sample of expected results:

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Single Table

In a database management system, a single table is designed to obtain data of heterogeneous items. A single-table design with DynamoDB resolves the issue of raising multiple requests for the relevant data of an entity.