Oracle SQL code to implement role-based access control for Jdoe:  "Jdoe is a manager. His role as a manager requires him to be able to view, update, insert, and delete records in Customer and Account_Payable table

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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.