October 2015
Intermediate to advanced
368 pages
8h 49m
English
Content preview from Mastering Google App EngineBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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The query API
Now that we understand how queries work under the hood, along with its their limitations and workarounds, it is time to learn more about the query API. As we have already seen briefly, there are two interfaces through which you can query your data. One is the object-oriented way where you can create query objects, call methods on them to tailor them according to your needs, and fetch results. The other is the SQL-like interface, which only allows you to read data. Thus, the only available statement is SELECT. This language is called GQL. Whatever queries you issue in GQL are translated into its equivalent object-oriented API.
Previously, the datastore API was available under the db package and was not very intuitive. Besides this, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.