Question

I am creating a database like this :

SQLiteDatabase db = openOrCreateDatabase("mydata.db",SQLiteDatabase.CREATE_IF_NECESSARY,null);
                    try
                    {
                    db.execSQL("CREATE TABLE IF NOT EXISTS vars (id INTEGER PRIMARY KEY ASC, varname,varvalue);");
                    db.execSQL("INSERT INTO vars (varname,varvalue) VALUES (\"user\",\"" + username + "\");");
                    Log.w("Test", "Am executat sql");

                    }
                    catch (SQLiteException e)
                    {
                        Log.w("Exceptie", "Acum or niciodata");
                    }

When i restart my program and i want to open it like this :

  SQLiteDatabase objDb = null;
        try
        {
            objDb =  SQLiteDatabase.openDatabase("mydata.db", null, SQLiteDatabase.OPEN_READWRITE);

        }
        catch(SQLiteException e)
        {
            //addShortcut();//setShortCut(getApplicationContext(),"GpsRo");
            //setContentView(R.layout.main);
            Log.w("Exceptie", e.getMessage());
            showForm = true;
        }

I get an exception : unable to open database file…

What am i doing wrong ?

Answer 1

Your database is in the wrong place:
“mydata.db” means your Databasefile is in root: (Path: /mydata.db). Your App can’t write in the root folder.
Try context.getFilesDir() + "/mydata.db" instead.

In one Command:

SQLiteDatabase db = openOrCreateDatabase(context.getFilesDir()"/mydata.db",SQLiteDatabase.CREATE_IF_NECESSARY,null);