How do I migrate my heroku database?

I've tried:

heroku rake db:migrate

and

heroku pg:push

The first gives me a PGe开发者_JS百科rror / rake aborted error.

Is there a way to completely rebuild/reset my database with heroku? I can't seem to find it in their documentation.

EDIT: I had a working database before this, but my tables and relationships have changed.

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If you had a working database, you could recreate your tables from the schema:

heroku run rake db:schema:load

If you want to just reset the database to empty:

heroku run rake db:create

What is the error it is giving you? It might be more helpful to try to solve that problem rather than wipe everything.

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This should be updated as heroku rake has been deprecated. Use heroku run rake now. See below, per command-line/stderr output, as of today (March 8, 2013):

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Incorrect:

• PROMPT>heroku rake db:migrate --app myApp

  WARNING: 'heroku rake'` has been deprecated. Please use 'heroku run rake' instead.

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Correct:

• PROMPT>heroku run rake db:migrate --app myApp

  Running rake db:migrate attached to terminal... up, run.2810

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Try:

 heroku rake db:migrate VERSION=0

This will get your database to its starting point.

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You can make heroku run directly into Heroku webapp

and then heroku run rails db:migrate

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heroku run rake db:migrate -a appname