title: Android SQL Database - rawQuery() Source not Found
body: <p>I know there are billions of threads about SQL Databases, but I didn't find any solving my problem.
  I've made an App called <a href="https://play.google.com/store/apps/details?id=com.celticwolf.alex&amp;feature=search_result#?t=W251bGwsMSwyLDEsImNvbS5jZWx0aWN3b2xmLmFsZXgiXQ.." rel="nofollow noreferrer">Beer Or No Beer</a> which needs an Arraylist with beer brands and their country. Now I want to manage this list with SQLite. I've created a database with SQLite Database Browser and copied the database into the assets folder (name: sqbeerlist).
  Now I've created a DatabaseHelper class to open the file and write it into an arraylist. 
  but when I want to acces the rows with</p>
  
  <pre><code>Cursor c = myDataBase.rawQuery("SELECT _id, brand FROM " + DATABASE_TABLE, null);
  </code></pre>
  
  <p>the DVM crashes and it says Source Not Found. WHAT AM I DOING WRONG ??</p>
  
  <p>here is the whole HelperClass:</p>
  
  <pre><code>package com.celticwolf.alex;
  
  import java.io.FileOutputStream;
  
  import java.io.IOException;
  
  import java.io.InputStream;
  
  import java.io.OutputStream; 
  
  import java.util.ArrayList;
  
  import android.content.Context;
  
  import android.database.Cursor;
  
  import android.database.SQLException;
  
  import android.database.sqlite.SQLiteDatabase;
  
  import android.database.sqlite.SQLiteDatabase.CursorFactory;
  
  import android.database.sqlite.SQLiteException;
  
  import android.database.sqlite.SQLiteOpenHelper;
  
  public class DataBaseHelper extends SQLiteOpenHelper {
  
  // The Androids default system path of your application database.
  
  private static String DB_PATH = "/data/data/com.celticwolf.alex/databases/";
  
  private static String DB_NAME = "sqbeerlist";
  
  private static final String DATABASE_TABLE = "beers";
  
  private SQLiteDatabase myDataBase;
  
  public static final String KEY_ROWID = "_id";
  
  public static final String KEY_NAME = "brand";
  
  public static final String KEY_COUNTRY = "country";
  
  private final Context myContext;
  
  public DataBaseHelper(Context context) {
  
      super(context, DB_NAME, null, 1);
  
      this.myContext = context;
  
  }
  
  /**
   * 
   * Creates a empty database on the system and rewrites it with your own
   * 
   * database.
   * 
   * */
  
  public void createDataBase() throws IOException {
  
      boolean dbExist = checkDataBase();
  
      if (dbExist) {
  
          // do nothing - database already exist
  
      } 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();
  
          try {
  
              copyDataBase();
  
          } catch (IOException e) {
  
              throw new Error("Error copying database");
  
          }
  
      }
  
  }
  
  /**
   * 
   * Check if the database already exist to avoid re-copying the file each
   * 
   * time you open the application.
   * 
   * 
   * 
   * @return true if it exists, false if it doesnt
   */
  
  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 doest exist yet.
  
      }
  
      if (checkDB != null) {
  
          checkDB.close();
  
      }
  
      return checkDB != null ? true : false;
  
  }
  
  /**
   * 
   * Copies your database from your local assets-folder to the just created
   * 
   * empty database in the system folder, from where it can be accessed and
   * 
   * handled. This is done by transfering bytestream.
   * 
   * */
  
  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)) &gt; 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();
  
  }
  
  public ArrayList&lt;String&gt; gettheArray() {
  
      ArrayList&lt;String&gt; result = new ArrayList&lt;String&gt;();
  
      try {
  
          openDataBase();
  
      }catch(SQLException sqle){
  
          throw sqle;
  
      }
  
      Cursor c = myDataBase.rawQuery("SELECT _id, brand FROM " + DATABASE_TABLE, null);
  
      c.moveToFirst();
  
      // Check if our result was valid.
  
      if (c != null) {
  
          // Loop through all Results
  
          do {
  
              result.add(c.getString(c.getColumnIndex(KEY_NAME)));
  
          } while (c.moveToNext());
  
      }
  
      close();
  
      return result;
  
  }
  
  @Override
  public void onCreate(SQLiteDatabase db) {
  
  }
  
  @Override
  public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
  
  }
  
  // Add your public helper methods to access and get content from the
  
  // database.
  
  // You could return cursors by doing "return myDataBase.query(....)" so it'd
  
  // be easy
  
  // to you to create adapters for your views.
  
  }
  </code></pre>
  
  <p>And here is how I access the class:</p>
  
  <pre><code>DataBaseHelper myDbHelper = new DataBaseHelper(null);
      myDbHelper = new DataBaseHelper(this);
  
      try {
           myDbHelper.createDataBase();
  
  } catch (IOException ioe) {
  
      throw new Error("Unable to create database");
  
  }
  
              ArrayList&lt;String&gt; thelist = myDbHelper.gettheArray();
  </code></pre>
  
  <p>Thank you and I hope someone can help (:</p>
  
  <p><strong>Problem Solved!</strong>
  Here is the correct Code!
  This sign marks the changes:   c==3</p>
  
  <pre><code>package com.celticwolf.alex;
  
  import java.io.FileOutputStream;
  
  import java.io.IOException;
  
  import java.io.InputStream;
  
  import java.io.OutputStream;
  
  import java.util.ArrayList;
  
  import android.content.Context;
  
  import android.database.Cursor;
  
  import android.database.SQLException;
  
  import android.database.sqlite.SQLiteDatabase;
  
  import android.database.sqlite.SQLiteDatabase.CursorFactory;
  
  import android.database.sqlite.SQLiteException;
  
  import android.database.sqlite.SQLiteOpenHelper;
  
  public class DataBaseHelper extends SQLiteOpenHelper {
  
  // The Android's default system path of your application database.
  
  private static String DB_PATH = "/data/data/com.celticwolf.alex/databases/";
  
  private static String DB_NAME = "sqbeerlist.sqlite";
  
  private static final String DATABASE_TABLE = "beers";
  
  private SQLiteDatabase myDataBase;
  
  public static final String KEY_ROWID = "_id";
  
  public static final String KEY_NAME = "brand";
  
  public static final String KEY_COUNTRY = "country";
  
  private final Context myContext;
  
  public DataBaseHelper(Context context) {
  
      super(context, DB_NAME, null, 1);
  
      this.myContext = context;
  
  }
  
  /**
   * 
   * Creates a empty database on the system and rewrites it with your own
   * 
   * database.
   * 
   * */
  
  public void createDataBase() throws IOException {
  
      boolean dbExist = checkDataBase();
      SQLiteDatabase db_Read = null;  // c==3
  
      if (dbExist) {
  
          // do nothing - database already exist
  
      } 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.
  
          db_Read = this.getReadableDatabase();  // c==3
          db_Read.close();  // c==3
  
          try {
  
              copyDataBase();
  
          } catch (IOException e) {
  
              throw new Error("Error copying database");
  
          }
  
      }
  
  }
  
  /**
   * 
   * Check if the database already exist to avoid re-copying the file each
   * 
   * time you open the application.
   * 
   * 
   * 
   * @return true if it exists, false if it doesnt
   */
  
  private boolean checkDataBase() {
  
      SQLiteDatabase checkDB = null;
  
      try {
  
          String myPath = DB_PATH + DB_NAME;
  
          checkDB = SQLiteDatabase.openDatabase(myPath, null,
                   (SQLiteDatabase.OPEN_READONLY | SQLiteDatabase.NO_LOCALIZED_COLLATORS));  // c==3
  
      } catch (SQLiteException e) {
  
          // database doesnt exist yet.
  
      }
  
      if (checkDB != null) {
  
          checkDB.close();
  
      }
  
      return checkDB != null ? true : false;
  
  }
  
  /**
   * 
   * Copies your database from your local assets-folder to the just created
   * 
   * empty database in the system folder, from where it can be accessed and
   * 
   * handled. This is done by transfering bytestream.
   * 
   * */
  
  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)) &gt; 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 | SQLiteDatabase.NO_LOCALIZED_COLLATORS)); // c==3
  
  }
  
  @Override
  public synchronized void close() {
  
      if (myDataBase != null)
  
          myDataBase.close();
  
      super.close();
  
  }
  
  public ArrayList&lt;String&gt; gettheArray() {
  
      ArrayList&lt;String&gt; result = new ArrayList&lt;String&gt;();
  
      try {
  
          openDataBase();
  
      }catch(SQLException sqle){
  
          throw sqle;
  
      }
  
      Cursor c = myDataBase.rawQuery("SELECT _id, brand FROM " + DATABASE_TABLE, null);
  
      c.moveToFirst();
  
      // Check if our result was valid.
  
      if (c != null) {
  
          // Loop through all Results
  
          do {
  
              result.add(c.getString(c.getColumnIndex(KEY_NAME)));
  
          } while (c.moveToNext());
      }
      close();
      return result;
  }
  
  @Override
  public void onCreate(SQLiteDatabase db) {
  }
  @Override
  public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
  }
  // Add your public helper methods to access and get content from the
  // database.
  // You could return cursors by doing "return myDataBase.query(....)" so itd
  // be easy
  // to you to create adapters for your views.
  }
  </code></pre>