SQLA (SQLAlchemy) Demo: Planets Database -- Update
In this video we add a rudimentary update form and route to the Planets database. We use WTForms to create a form with a SelectField (drop-down select) for choosing the planet to be updated. The form also has a TextField (for the planet's name), two DecimalFields (for the planet's distance and period) and a SubmitField for entering the data. Because there is a small amount of data, the code follows the update by redirecting the route to the GridJS datatable.
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More Database Introduction: Database Categories and Codd's Rules for Relational Databases
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Finding More Patterns in the Perfect-Shuffle (Riffle) Integer Sequence with Wolfram-Cloud