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Google I/O 2008 - App Engine Datastore Under the Covers

Negocios que puedes iniciar con poco capital
Negocios que puedes iniciar con poco capital Negocios que puedes iniciar con poco capital
Negocios que puedes iniciar con poco capital

Under the Covers of the Google App Engine DatastoreRyan Barrett (Google)Ever wonder why you can't do joins in the Google App Engine datastore? Why your app is seeing deadlines so often? Why it's so hard to tell whether a query will need an index? Why we offer both parent/child relationships and reference properties? Or why list properties don't seem to make any sense at all? This talk will explain how the datastore itself works, why these seeming peculiarities (and many others!) exist, and what you can do about them.

Channel: Science & Technology
Uploaded: November 30, 1999 at 12:00 am
Author: GoogleDevelopers

Length: 00:14
Rating: 4.20
Views: 6830

Tags: App  Datastore  Engine  Google  I/O  IO2008  

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Video Comments

drhannson (November 30, 1999 at 12:00 am)
Maybe something like this:ManyToMany(dbModel): ref1 = ReferenceProperty() ref2 = ReferenceProperty()
kbghost (November 30, 1999 at 12:00 am)
still not 100% sure on how to design many-to-many relationships in the datastore
kbghost (November 30, 1999 at 12:00 am)
still not 100% sure on how to design many-to-many realtionships in the datastore...

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