I followed this tutorial. Link-
I successfully implemented what's in the tutorial.
After that I Use Update command to update my DB from the asset folder.
In my device i can see The updated part,
But when i Import the DB File to SQL DB Browser, the DB File remains unchanged.
I need the DB File for other use so im using Android to fill the datas what i need. Thanks.

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1 Answers
If you want to ship your Android app with a populated DB, then you should definitely use the sqlite-asset-helper by Jeff Gilfelt. You can find a real example of how to use the library here: http://www.6020peaks.com/2015/03/how-to-ship-an-android-app-with-preloaded-data/
Update: I just saw that the tutorial you followed is also using sqlite-asset-helper. If I understood your question correctly, I think you are looking at the wrong db file. The file that you need and that will contain all the new data generated by your android app will be here: /data/data/application_package_name/databases.
Check this out for more info on that direction: What is the default database location of an android app for an unrooted device?? Is it same as for rooted one?