Are there any rapid Database protoyping tools that don’t require me to declare a database schema, but rather create it based on the way I’m using my entities.
For example, assuming an empty database (pseudo code):
user1 = new User() // Creates the user table with a single id column user1.firstName = 'Allain' // alters the table to have a firstName column as varchar(255) user2 = new User() // Reuses the table user2.firstName = 'Bob' user2.lastName = 'Loblaw' // Alters the table to have a last name column Since there are logical assumptions that can be made when dynamically creating the schema, and you could always override its choices by using your DB tools to tweak it later.
Also, you could generate your schema by unit testing it this way.
And obviously this is only for prototyping.
Is there anything like this out there?
Google’s Application Engine works like this. When you download the toolkit you get a local copy of the database engine for testing.