Transition

The Schevo project is in a transition between servers. We are working to bring the site, and the Schevo project, back to a state where it's easy to get started with Schevo.

During this transition, be sure to peruse our mailing list for updates.

Use Schevo

If you're brand new to Schevo, start at SchevoGettingStarted.

After installing it, proceed to SchevoTutorials.

When you're deep into writing your Schevo apps, consult the SchevoCookbook.

Join our community

Visit the Schevo mailing list to discuss Schevo.

The list archives for schevo-devel may also be useful even though that list is no longer in use.

Join the #schevo room on the FreeNode IRC network for real-time chat.

If you are a developer, be sure to check out the information we have for SchevoDevelopers.

What is Schevo

Schevo is a next-generation DBMS that focuses on the following:

  • 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.

Benefits of Schevo over SQL-based DBMSs

Also see WhyUseSchevo.

  • 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.

Schevo Packages

Schevo consists of a core database engine and a number of optional packages that make use of that database engine:

  • Schevo -- Core database engine.
  • SchevoGtk -- PyGTK support. Includes a 
    WARNING: `DatabaseNavigator`:trac: is not a valid TracLink
  • SchevoGears -- TurboGears support.
  • SchevoPylons -- Pylons support.
  • SchevoPylonsNav -- A web-based 
    WARNING: `DatabaseNavigator`:trac: is not a valid TracLink
    .
  • SchevoSql -- SQL export support.
  • SchevoWeb -- Framework-independent web support.
  • SchevoWsgi -- Framework-independent WSGI support.
  • SchevoXml -- XML export/import support.

Presentations

History