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
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My proble is I created a device in sqlite database browser and its work fine in emulator.
but when a try my application to my device it cause force close.
and when I remove the database and create a new one using eclipse it works fine even in my device. But inserting a lot of data in database 1 by 1 realy freakin me out so anyone know a sqlite database browser that also work for device??!
check out this tutorial for using database file in application.
Remember one thing that it only copy you DB file in application that's it.
On real device you don't have permissions to sqlite database. That's why you won't be able to browse database like you can on a emulator.
See this for a work around.
Tool to see android database, tables and data
If you want to create a pre-loaded DB outside of your app and use it in your app later, you will have to put it in your assets directory and then copy it to your apps storage space the first time your app is started.
This is due to the fact that as a security measure, on real (unrooted) devices nothing but your own app is allowed access to that apps databases directory (and certain other ones as well).
There is a good tutorial for creating/copying your own DB outside of the app and copying it to the apps databases directory here.
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 have been using an SQLite database in the application I am developing for the android platform. I would like to explore the data from my PC and see the tables and entities. I don't think I have the proper security to access it when I try from the DDMS file explorer on eclipse. I can't open the data folder and when I copy it on my desktop it is empty. Does anyone know how to dump my mobile android SQLite database onto my PC?
You could use cellObject sqlite browser to browse directly from DDMS below is a link to the eclipse plugin: http://www.cellobject.net/Tools/CellObjectSQLiteXMLBrowser.aspx
Without rooting your phone you can get a copy of the DB by running the app on the emulator and then use the DDMS to pull it.from there. It will be the same as if you pulled it off your phone.
You can get DB file your application. Even if your device not rooted.
You must add debug action: copy from \databases\database.db to sdcard. Get database path by getDatabasePath.
From sdcard you can get file by adb pull or File Explorer.
Also you can process back operation: copy from sdcard to app. Of couse you app at device don't
be started.
Иut I have not had any problems, even when the application is running, but there is no access to the base.
i have created a db in the phone and have inserted some values in it as well. now there is a large excel sheet which contains several more records that need to be inserted.
i am trying to find the db file in the phone so as to use sql lite db tool to upload some data in it. but the folder is empty.
can any one suggest or guide.
thanks
If you are on a real phone the /data folder will appear empty unless you have root access. An application like root explorer can allow you access to these folders (with the proper permissions). This probably isn't what you want to/should do.
If you are on an emulator you can use the file explorer in eclipse to browse your phones data/data/package folders and copy your database to and from the emulator quickly (or use adb shell commands).
Are you just doing this to test something? You should have your application insert the data you want, or create your own SQLite database and package it with your application. If you externally modify your database like this, reinstalling the application - or installing it on a different device - would result in an application still using your old/unmodified database.
I have an app which uses a large amount of data which has been compiled outside the app (on my main PC). The app is for my personal use so there are no complications with having to distribute data updates to other users. However, I am currently following a very convoluted and time-consuming procedure each time I want to update the data, and I wonder if anyone can suggest any ways to streamline it.
The procedure I follow whenever I want to add new data is as follows:
I enter the new data into a csv file which I maintain as the source of the relevant table in the database
I use SQLite Database Browser to import the data into an existing SQLite database. (This program does not seem to have the ability to append imported data into an existing table, so whenever a table needs updating I have to delete the existing table, then import data from the csv file into a new table, then manually edit the data types for all the fields in the table.)
I drag the icon for the database file onto the 'assets' folder of my project in Eclipse.
I export the project from Eclipse as an apk file.
I copy the apk file to my phone
(using Astro File Manager) I uninstall the old version of the app and install the new apk.
when the app is run, code based on the example set out here copies the data from the 'assets' folder into the app's data folder; this means that each byte of data takes up two bytes in the phone's internal memory; at present this is not a problem, but could be as the volume of data grows; I wonder if there is a more memory-efficient method?
I should be very grateful for any guidance.
I have found that I can have the SQLite database on the SD card, which simplifies things for me considerably (and reduces the amount of internal memory occupied by my app.)
The first clue was this blog which told me that it is possible (contrary to the impression I had gained from the Android documentation and from my earlier googling) for an app to refer to a database on the SD card.
I then found this page here on Stack Overflow which points out how simple the code can be.
With the help of the advice on these pages, I now have much simpler DBHelper code in my app where the openDataBase() method simply reads as follows:
public void openDataBase() throws SQLException{
File dbfile = new File(DB_PATH + DB_NAME);
myDataBase = SQLiteDatabase.openOrCreateDatabase(dbfile, null);
}
There is no longer any need to include the database in my project's "assets", nor therefore to include it in the apk file. And the great advantage is that the database can be updated without having to go anywhere near Eclipse, let alone reinstalling the app.
I don't really know about the database but I do know that if in eclipse you run the app on your phone it will automatically install it. So instead of running it in the emulator when you press the play button, run it on your phone and many of those steps will be eliminated.
To Wipe Database Clean on startup on the emulator:
Click the down arrow next to the play button in eclipse
Select Run Configurations
Click the Target Tab
Check the "Wipe User Data" check box