title: Database Version SQLite Android
body: <p>I am learning Android. I have one Quote application with SQLite database. I need to give Database version to this application so Whenever I update application, users database also can be get updated. What changes I need to made in this ?</p>
  
  <p>My database Helper/ Handler Class is like below.</p>
  
  <pre><code>public class DataBaseHandler extends SQLiteOpenHelper {
      private static String DB_PATH;
      private static String DB_NAME = "SuccessQuotesNew";
      private SQLiteDatabase myDataBase;
      private final Context myContext;
      public DataBaseHandler(Context context) {
  
          super(context, DB_NAME, null, 1);
          this.myContext = context;
          DB_PATH = context.getDatabasePath(DB_NAME).toString();
          Log.e("path", DB_PATH);
      }
  
      public void createDataBase() throws IOException {
  
          boolean dbExist = checkDataBase();
  
          if (dbExist) {
  
          } else {
              this.getReadableDatabase();
  
              try {
  
                  copyDataBase();
  
              } catch (IOException e) {
  
                  throw new Error("Error copying database");
  
              }
          }
  
      }
  
      // ==============================================================================
  
      private boolean checkDataBase() {
  
          SQLiteDatabase checkDB = null;
  
          try {
              String myPath = DB_PATH;
              checkDB = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY);
  
          } catch (SQLiteException e) {
  
          }
  
          if (checkDB != null) {
  
              checkDB.close();
  
          }
  
          return checkDB != null ? true : false;
      }
  
      private void copyDataBase() throws IOException {
  
          InputStream myInput = myContext.getAssets().open(DB_NAME);
          String outFileName = DB_PATH;
          OutputStream myOutput = new FileOutputStream(outFileName);
          byte[] buffer = new byte[1024];
          int length;
          while ((length = myInput.read(buffer)) &gt; 0) {
              myOutput.write(buffer, 0, length);
          }
          myOutput.flush();
          myOutput.close();
          myInput.close();
  
      }
  
      // ==============================================================================
  
      public void openDataBase() throws SQLException {
  
          // Open the database
          String myPath = DB_PATH;
          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) {
  
      }
  
  
  }
  </code></pre>