我的android数据库在哪里？

Question

i created an android application on eclipse where i made a database(just for testing) and i have to use that database in the final application to get and store information from the app. but most importantly i have to be able to share that database with others. and i cant find the file to be shared. i dont have much knowledge of sql but i thought they were stored in .db format so i tried to search for it but couldnt find the file. i can see the entries but not the file.

i also ran the app on my phone and i still could not find the database file, instead i found the database files of other apps like whatsapp.

so, where is my database ?

Answer 1

You can find the database you created on the internal storage of your device:

/data/data/<app-package-name>/databases/<database-name>

You need to be root to see that file with a file explorer.

Answer 2

Whether you are using emulator or real device, you can use DDMS ( Window-> open perspective-> DDMS ) to navigate the DB.

In DDMS, there is a File Explorer ( If not visible, window-> show view-> File Explorer ).

Now there, you can navigate to the db as /data/data/<app-package-name>/databases/<database-name>

Now, to save the file, click on save button at top right corner of File Explorer.

Update:

Actually, before a table row insertion, I can't see the data base. If you want a static table with predefined data, you can do insertion at the time of table creation. Eg:- Refer onCreate() method->

public class DbHelper extends SQLiteOpenHelper {

SQLiteDatabase db;

public DbHelper(Context context) {
    super(context, "pics.db", null, 1);
}

@Override
public void onCreate(SQLiteDatabase db) {
    db.execSQL("create table picture(_id INTEGER PRIMARY KEY,pics varchar(20))");
    db.execSQL("insert into picture values(1001,'one.jpg')");
    db.execSQL("insert into picture values(1002,'two.jpg')");

}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
    // TODO Auto-generated method stub

}
public long insert(ContentValues cv) {
    db = getWritableDatabase();
    long l=db.insert("picture", null, cv);
    db.close();
    return l;

}
public Cursor getAllValues() {
    db=getReadableDatabase();
    Cursor cr=db.query("picture", null, null, null, null, null, "_id");
        db.close();
        return cr;
    }

}