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A database has an Engineer table with records for 2 0 engineers. Each one of these engineers is assigned to supervise only one distinct construction

A database has an Engineer table with records for 20 engineers. Each one of these engineers is assigned to supervise only one distinct construction site from a Sites table. The Sites tablet also has 20 construction sites. The database is queried with the following command:
SELECT * FROM Engineer, Sites;
How many records will this Select command produce?

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