Question: An internal logical file contains data about purchase orders. These orders are organized into two separate record types: the main purchase order details ( including

An internal logical file contains data about purchase orders.
These orders are organized into two separate record types:
the main purchase order details (including purchase order
number, supplier reference and purchase order date) and
details for each Purchase Purchase-OrderOrder-Item specified in the order
(including product code, unit price, and number ordered).

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