On Thu, Jul 10, 2008 at 8:20 AM, Heston James <[EMAIL PROTECTED]> wrote: > > Good afternoon guys, > > I'm brand new to SQLAlchemy as of about 2 minutes ago, I have a couple > of starter questions that I wanted to run past you, with any luck > they'll be simple for you to answer. > > After looking through the quick tutorial, which showed me just about > all I need to know http://www.sqlalchemy.org/docs/05/ormtutorial.html > it talks about connecting to an in memory sqllite database using a > connection string like so: > > create_engine('sqlite:///:memory:', echo=True) > Here is a list of possible connection strings. Its more towords turbogears way but it will get you started. http://lucasmanual.com/mywiki/TurboGears#head-8457721059b18a5f2264f8484082deb5b294d27a
Here is sqlalchemy: http://www.sqlalchemy.org/docs/05/dbengine.html#dbengine_establishing (ps. could you guys add the connection strings to you docs I have listed them in the top link. I've mentioned this before but I guess it wasn't added to you official docs back then.) And you should read over: http://www.rmunn.com/sqlalchemy-tutorial/tutorial.html > How would I connect to a local MySQL database? The database I'm > working with is already designed and built, which leads me onto my > next question: > > In the tutorial documentation it talks about 'Defining and Creating a > Table'. Is this something which need only be done when we're working > with an in-memory database? or do I have to define my database schema > even if its a pre-existing mysql database? or does SQLAlchemy > introspect it or something? You auto load the existing database. > > My thrid and final question is about the persistance of composed > objects. If I save an object using sql alchamy, I see it also saves > the objects children. Is this done in a transaction by default? if the > save process on one of its children fails will it all be rolled back? > or is this something I have to specify seperatly? > > Thanks guys, once I know those little items I'm sure I'll be able to > get up and running pretty swiftly. > > Cheers, > Lucas --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
