title: query doesn't work database android
body: <p>I'm developing a simple Android application with SQL. I followed the following guides - <a href="http://www.reigndesign.com/blog/using-your-own-sqlite-database-in-android-applications/" rel="nofollow">Using your own SQLite database in Android applications</a></p>
  
  <p>I get an error when trying to do a query the database. </p>
  
  <p>Here is my DataBaseHelp.Java Class :</p>
  
  <pre><code>package namae.nombebe;
  
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  
  import android.content.Context;
  import android.database.SQLException;
  import android.database.sqlite.SQLiteDatabase;
  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/namae.nombebe/databases/";
  
      private static String DB_NAME = "myDBName";
  
      private SQLiteDatabase myDataBase; 
  
      private final Context myContext;
  
      /**
       * Constructor
       * Takes and keeps a reference of the passed context in order to access to the application assets and resources.
       * @param context
       */
      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 doesn't
       */
      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;
      }
  
      /**
       * 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();
  
      }
  
      @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 this is the way i open my database :</p>
  
  <pre><code>    public void onCreate(Bundle savedInstanceState) 
      {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.main);
  
          DataBaseHelper myDbHelper = new DataBaseHelper(this);
  
          try 
          {
                  myDbHelper.createDataBase();
          } 
          catch (IOException ioe) 
          {
              throw new Error("Unable to create database");
          }
  
          try 
          {
              myDbHelper.openDataBase();
          }
          catch(SQLException sqle)
          {
              throw sqle;
          }
  
          myDataBase = myDbHelper.getWritableDatabase();
  
          Cursor c = myDataBase.rawQuery("SELECT * FROM Astuces", null);
  // problem on this query
      }
  </code></pre>
  
  <p>So the query doesn't work. (if i don't put it application work)</p>
  
  <p>I have a Table <code>Astuces</code>.</p>
  
  <p>Errors :</p>
  
  <pre><code>07-30 10:56:53.869: E/AndroidRuntime(503): java.lang.RuntimeException: Unable to start activity ComponentInfo{namae.nombebe/namae.nombebe.NomBebeActivity}: android.database.sqlite.SQLiteException: no such table: Astuces: , while compiling: SELECT * FROM Astuces
  </code></pre>
  
  <p>We can see I say there are no table <code>Astuces</code> I really have it so I didn't understand why i can find it.</p>