Cannot copy big database file from "Assets"

Question

I'm having a problem copying database from assets. When my database has a small size example 300KB it works fine. But when my database reach 2.5mb an error has been occurred. It is working fine after I have created a new AVD. Maybe its the SD card of emulator causing the error? Because when I install my app in my device it is working.

Here is what log cat says:

07-23 18:12:51.522: E/AndroidRuntime(866): Uncaught handler: thread main exiting due to uncaught exception
07-23 18:12:51.531: E/AndroidRuntime(866): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.frux.kfcmobile/com.frux.kfcmobile.KFCmobileActivity}: android.database.sqlite.SQLiteException: no such table: first: , while compiling: SELECT * from first
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2496)
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.app.ActivityThread.access$2200(ActivityThread.java:119)
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.os.Handler.dispatchMessage(Handler.java:99)
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.os.Looper.loop(Looper.java:123)
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.app.ActivityThread.main(ActivityThread.java:4363)
07-23 18:12:51.531: E/AndroidRuntime(866):  at java.lang.reflect.Method.invokeNative(Native Method)
07-23 18:12:51.531: E/AndroidRuntime(866):  at java.lang.reflect.Method.invoke(Method.java:521)
07-23 18:12:51.531: E/AndroidRuntime(866):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
07-23 18:12:51.531: E/AndroidRuntime(866):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
07-23 18:12:51.531: E/AndroidRuntime(866):  at dalvik.system.NativeStart.main(Native Method)
07-23 18:12:51.531: E/AndroidRuntime(866): Caused by: android.database.sqlite.SQLiteException: no such table: first: , while compiling: SELECT * from first
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.database.sqlite.SQLiteProgram.native_compile(Native Method)
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.database.sqlite.SQLiteProgram.compile(SQLiteProgram.java:110)
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:59)
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:49)
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:49)
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1220)
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1193)
07-23 18:12:51.531: E/AndroidRuntime(866):  at com.frux.kfcmobile.KFCmobileActivity.onCreate(KFCmobileActivity.java:42)
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
07-23 18:12:51.531: E/AndroidRuntime(866):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)
07-23 18:12:51.531: E/AndroidRuntime(866):  ... 11 more

Here is my DBHelper Codes:

public class DatabaseHelper extends SQLiteOpenHelper{

private static String DB_PATH = "/data/data/com.frux.kfcmobile/databases/";
private static String DB_NAME = "database";
private SQLiteDatabase myDataBase; 
private final Context myContext;
private static final int DATABASE_VERSION = 1;


public DatabaseHelper(Context context) {
    // TODO Auto-generated constructor stub
    super(context, DB_NAME, null, DATABASE_VERSION);
    this.myContext = context;


}
 public void createDataBase() throws IOException{

        boolean dbExist = checkDataBase();

        if(dbExist){
            //do nothing - database already exist
            this.getWritableDatabase();
            this.close();
        }else{

            //By calling this method and empty database will be created into the default system path
               //of your application so we are gonna be able to overwrite that database with our database.
            this.getReadableDatabase();
            this.close();
            try {

                copyDataBase();

            } catch (IOException e) {

            //throw new Error("Error copying database message");

            }
        }

    }

 private boolean checkDataBase(){

        SQLiteDatabase checkDB = null;

        try{
            String myPath = DB_PATH + DB_NAME;
            checkDB = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY);

        }catch(SQLiteException e){

            //database does't exist yet.

        }

        if(checkDB != null){

            checkDB.close();

        }

        return checkDB != null ? true : false;
    }



 private void copyDataBase() throws IOException{

        //Open your local db as the input stream
        InputStream myInput = myContext.getAssets().open(DB_NAME);

        // Path to the just created empty db
        String outFileName = DB_PATH + DB_NAME;

        //Open the empty db as the output stream
        OutputStream myOutput = new FileOutputStream(outFileName);

        //transfer bytes from the inputfile to the outputfile
        byte[] buffer = new byte[1024];
        int length;
        while ((length = myInput.read(buffer))>0){
            myOutput.write(buffer, 0, length);
        }

        //Close the streams
        myOutput.flush();
        myOutput.close();
        myInput.close();

    }



 public void openDataBase() throws SQLException{

        //Open the database
        String myPath = DB_PATH + DB_NAME;
        myDataBase = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY);

    }

    @Override
    public synchronized void close() {

            if(myDataBase != null)
                myDataBase.close();

            super.close();

    }

    @Override
    public void onCreate(SQLiteDatabase db) {


    }





    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {


    }

}

Answer 1

Consider this line in your Logcat

Caused by: android.database.sqlite.SQLiteException: no such table: first: , while compiling: SELECT * from first

According to that it says there are no table called "first". But you says that it is working in Emulator :-/

Go to DDMS view and check the DB that you have created. Use SQLite browser to browse the database that you have created and export.

Answer 2

See the below tutorial

http://www.reigndesign.com/blog/using-your-own-sqlite-database-in-android-applications/

There is a limitation around 1.2 Mb for files in the asset folder.

If it is working fine "Because when I install my app in my device it is working." then what is your problem.

Answer 3

According to error your database has no table named first. It seems it is copied.