I am developing an application on Android where I need to use a database (SqLite). However, I don't know where it is saved and even if the database is really created... How can I ensure it?
Thanks
The SQLite database is by default stored at below path:
data/data/application_package_name/databases/your_db_file
However this path is private to the application and you cannot access it unless the device is rooted. You can have a look at this path when you run you application in emulator and then access above path using 'android device manager' from Android Studio.
Go to DDMS -> file explorer -> data -> data -> see your package name -> databases -> here your database file. (In the upper right, choose "Pull file" from device.) Export it and open through an Sqlite database connector.
It totally depends upon your code implementation. You can create Database in internal(that is app memory) or in external memory as well. Well in case of internal memory the database is not visible in directory structure while in external case you can see database file physically.
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I'm facing some problems dealing with the database and I want to keep track of the elements in the database if it is possible
i didn't understand, i haven't install it yet in my phone on debug
mode
If the phone isn't rooted and you've stored the database in the default location (most likely), then it will be in a protected area and cannot be directly accessed. If the phone has been rooted then you'd have access.
However, typically you'd use an emulator to develop an App rather than a real device (e.g. Android Studio's build in emulator or perhaps GenyMotion) and access to the databse is then generally possible via clicking on Device Explorer from within Android Studio e.g. :-
After clicking click on the data folder and then click on the data folder within the dta folder and then find the folder that equates to the package (as per your App) and then click on that. There would be a databases folder and the database file will be the file that is named exactly the same as the database e.g.
the package for the database in the example screenshot (not the same as the former App to reduce the screen size) is aaa.so553322709simpleloggingexample and the datbase name is mydb (as this is on Android Pie and that the database is using the default WAL mode then the -shm and -wal files also exist).
You can right click on the database file and then on Save-As to save the file on the PC. You can then open the file with your SQL Management Tool (e.g DB Browser).
You can access to db file of your application in Device File Explorer.
data-->data-->your app package name-->databases
then save as it and see it in DB browser.
Also you can pull db file with adb
I am developping an Android apllication i wich i have an sqlite database which i want to extract the file (.db) to manage it with a manager (like sqlitemanager for example).
For that, i searched in many sites and the answer of the "how question" was the same, it consists of the following steps ( from http://forums.xamarin.com/discussion/4991/copy-sqlite-db-into-android-app ) :
1) Open the Android-sdk-windows
2) then open the tools
3) then ddms open
4) Dalvik Debug Monitor is open
5) then Device -> File Explorer.
6) data/data/your_project_package/files/your_database_file.db
7) copy your_database_file.db and open sqlite manager
I have followed these steps normally but my problem is that my data folder is empty !!, it does contain any another folder, and am getting this although i installed the application on the device, so i do not know what is the problem source.
I will be gratefull for any help
Thanks.
In the image below,Let if com.android.browser is the package name of your application then your database will be created in the db folder (not in the image ) as a sibling of lib.
Note: While working with sqlite database in android,I came to know that the created database will not show up even after the create statement for the tables are executed.They(the databases) are visible only in the DDMS file explorer, when some row is inserted in the table.So make sure you are performing some insertion before you start dealing with the database.
I have a question about access to database. I have a database, but I can't see this database in data on my davice. On emulator in data I can see this database but on device data folder is empty. I need to do this because when I want to see database in DDMS perspectiv with emulator, my eclipse is stuck and I must restart.
Android doesn't provide access to its application data folders in a device. You can either root your device(which essentially means you give everyone access to all files in your device) or you could move the db to sdcard (if that is a possible option). You can access files in sdcard from adb.
You can access the database using ADB from the terminal (in android tools folder or platform folder). You can't access the database in the device unless you root your device. That's to restrict the application data from being open . (Other application's data).
I am working with SQLite in an App. It writes to the database, etc., with no problem. However, I can not find this new database. I have tried changing the directory with cd /data/data/packageName/databases, but it says "no such file or directory". Also, this database is not found when I click on the File Explorer in eclipse. My logging tells me the database was created and that it is being written to. I think I need to set the path in the shell or something to that effect using adb, but I have no idea how to do that. Can anyone give me some instruction? Also, I am using my phone for development. The database also does not show up when using the emulator.
Thanks very much.
Matt
Matt,
This thread gives a good explanation on why you might not be able to access the data folder on your phone.
Can't access data folder in the File Explorer of DDMS using a Nexus One!
You can still test the Sqlite code though. Just boot up an emulator. The emulator will have no access restrictions. Once it's booted up you can use the ddms tool (located in the tools directory under your android SDK install folder). It has a File Explorer and you can download the files from the /data folder.
Also, I am using my phone for development.
You cannot access the database on a standard Android device except via your own application code.
Your options are:
Do this sort of testing on an emulator, in which case you can access the directory that you are failing to access on the device
Add a database backup feature to your app, that copies the (closed) database to external storage, so you can examine it
Root your phone (leastways, I am under the impression this can help get you to this directory -- haven't done it myself)
The database also does not show up when using the emulator.
Try harder. If you can store data in the database and read data out of it using SQLiteDatabase, then the database file is there.
i am new in android database.i downloaded sqlite database browser.
can u give me the steps how to use already generated database in android sdk with eclips.
give me proper structure where to store database in eclips folder structure
When you create a database in your application, it is stored in
/data/data/com.zenika.droidcontact/databases/nameOfYourDatabase.db
You can find this file by going in the DDMS perspective in Eclipse, in the file explorer view, select the emulator and then, follow the path here above to your file. Then, select it and you can use the "Pull a file from device" to get this database on to your computer. Then you can start SQLite Database Browser. now you can open your file, modifiy it in the software, execute request with the 3rd tab, browse tables and data with the first and second. Then, you can save the database modified and push it back onto the emulator just the same way as you pulled it, but with the push button.
Is this clear or do you need more explanation?