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What is a database engine?

What should be used in Chrome packaged apps to enable a "SQL like" database for persistant data and offline apps? (without database engine)

  • I would like to find a way to easily build a packaged app that deals with persistant user data without force the user to install a Database engine. Also app has to work in offline mode ... Perimeter : Chrome apps. Thanks ! :-)

  • Answer:

    If I'm not mistaken, Chrome stores some of its persistant data in SQL Lite.  I'm not sure if you can access it directly, but I assume this is a "best practice" approach if it's built into Chrome. Here is a good blog entry with some of SQL Lite issues related to Chrome's internal implementation: http://maxradi.us/documents/sqlite/

Joseph Hsieh at Quora Visit the source

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Others are correct and state that Web SQL DB is available to Chrome and thus Chrome packaged apps.  A very good presentation for offline and storage options is: http://html5-demos.appspot.com/static/html5storage/index.html#slide1

Seth Ladd

I'm a Chrome dev that developed a packaged app. Chrome supports the Web SQL API that allows you to use basic SQL syntax to store your data in browser. I coupled it with a timer to ensure data was saved without user intervention. Works really well.

Matthew Phillips

You can use IndexedDB or Web SQL. Read this: https://developer.chrome.com/apps/offline_apps This is for your example: https://github.com/abdullahc/Indexeddb-Chrome-App

Kartikey Tanna

From my brother, a good article on how use localStorage with HTML 5 in Chrome : http://www.rajdeepd.com/articles/chrome/localstrg/LocalStorageSample.htm

Vincent Levasseur

Guys i am afraid i am still not very clear in this aspect that if i want to make a app like this that: 1. when offline it saves the data in the Local system and when connected to the internet it syncs all the data to the remote database Please tell me which database i can use to do the above procedure for chrome packaged Apps?

Abhishek Jain

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