title: android sqlite CREATE TABLE IF NOT EXISTS
body: <p>Having a little problem with creating new tables. When I use the CREATE TABLE command my new tables form as they should, but when I exit the activity the app crashes and I get a TABLE ALREADY EXISTS in the logcat. If I use CREATE TABLE IF NOT EXISTS the new table isn't formed but just adds my new rows of data to a previous table and it doesn't crash. What is wrong with this? I would like to add the table without it giving me the already exists and I would like it to add without it adding rows to a different table.</p>
  
  <p>SqliteHelper Class:</p>
  
  <pre><code>public class MySQLiteHelper extends SQLiteOpenHelper {
  
  
  public static final String TABLE_NAME = MainActivity.NameName;
  
  public static final String COLUMN_ID = "_id";
  public static final String COLUMN_COMMENT = "comment";
  public static final String COLUMN_LAT = "lat";
  public static final String COLUMN_LONG = "long";
  public static final String COLUMN_RADI = "radi";
  private static final String DATABASE_NAME = "spraylogs.db";
  private static final int DATABASE_VERSION = 1;
  
  
  
  public static final String NEWTABLE = "CREATE TABLE  "
           + TABLE_COMMENTS + "(" + COLUMN_ID
            + " integer primary key autoincrement, " + COLUMN_COMMENT
            + " text not null," + COLUMN_LAT+ ","  + COLUMN_LONG + "," + COLUMN_RADI +  ");";
  
  public static final String SaveIt = "CREATE TABLE IF NOT EXISTS "
           + TABLE_COMMENTS + "(" + COLUMN_ID
            + " integer primary key autoincrement, " + COLUMN_COMMENT
            + " text not null," + COLUMN_LAT+ ","  + COLUMN_LONG + "," + COLUMN_RADI +  ");";
  
  
  
   MySQLiteHelper(Context context) {
    super(context, context.getExternalFilesDir(null).getAbsolutePath() + "/" + DATABASE_NAME, null, DATABASE_VERSION);
  }
  
  
  @Override
  public void onCreate(SQLiteDatabase database) {
  }
  
  @Override
  public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
  Log.w(MySQLiteHelper.class.getName(),
      "Upgrading database from version " + oldVersion + " to "
          + newVersion + ", which will destroy all old data");
  db.execSQL("DROP TABLE IF EXISTS " + NEWTABLE);
  
  onCreate(db);
   } 
  
  } 
  </code></pre>