How does he get from the the text of the article, which approximately says "It would be useful in some cases for a database to be dynamically typed" to the sweeping statement "Databases Should be Dynamically Typed".
As others have noted, relational databases have a rigorous theoretical foundation that is not consistent with what he describes as dynamic typing. He should consider looking at a graph database. Many of these are billed as "RDF Stores" or "Triple Stores". Franz's AllegroGraph is an excellent example.
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How does he get from the the text of the article, which approximately says "It would be useful in some cases for a database to be dynamically typed" to the sweeping statement "Databases Should be Dynamically Typed".
As others have noted, relational databases have a rigorous theoretical foundation that is not consistent with what he describes as dynamic typing. He should consider looking at a graph database. Many of these are billed as "RDF Stores" or "Triple Stores". Franz's AllegroGraph is an excellent example.