David Chandler's Journal of Java Web and Mobile Development

  • David M. Chandler

    Web app developer since 1994 and Google Cloud Platform Instructor now residing in Colorado. Besides tech, I enjoy landscape photography and share my work at ColoradoPhoto.gallery.

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    January 2010
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Archive for January 25th, 2010

How to do joins in AppEngine

Posted by David Chandler on January 25, 2010

So the AppEngine DataStore DOES do joins, after all… using the mysterious list properties. This is highly recommended viewing for anyone building a large social application or otherwise looking for a simple alternative to a SQL inner join. You cannot organize your data model quite the same as you would in a relational database, but you can easily simulate querying an intersection table.

Building Scalable, Complex Apps on AppEngine

Posted in AppEngine | 3 Comments »

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