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Open source and Python based next-generation DBMS Schevo is a free and open source next-generation DBMS created with the help of Python. Benefits of Schevo over SQL-based DBMSs:· Native datatypes, with no need to worry about what length of string you need, or what size of integer.· One file contains all schema logic.· Rich behavior along with your data, in the form of Python methods.· Calculated fields as part of the schema.· Easily customized Create/Update/Delete transactions.· Entity fields are much easier and smarter than foreign keys.· Python references are much easier than SQL joins. Here are some key features of "Schevo": Rapid Development: · It's easy and fun to create even the most complex of databases. Easily write and understand schema syntax. Quickly place required initial data directly in your schema; use the same syntax to create sets of sample data for development use. Rich Schema Definition: · Write database schemata using concise, easy-to-read Python code. Your schema will describe not only database structure, but also all transactions and rules that ensure database integrity. Automated Schema Evolution: · Deploy a Schevo database and use it to store valuable data, then easily make further changes to the structure of the database. Use Schevo's tools to help restructure a database and safely migrate data from one schema version to the next. Transaction Based: · Schevo protects your data. Use transactions to make all changes to a Schevo database (it's the only way it allows you to!), and you can trust Schevo to ensure that your database is left in a consistent state at all times. User Interface Generation: · User interface code takes advantage of the richness of your database schema. Use a full-featured database navigator to interact with your database without writing a single line of code outside your database schema. Build customized UIs using Schevo-aware widgets and UI tools.

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