/**
  * Execute the update SQL language,we will use the HttpClient you passed.If client is null,we will
  * use the default HttpClient.
  *
  * @param sql The sql you want to execute.
  * @param client HttpClient from org.apache.
  * @return A List with Map in it,each map represents a javaBean mapping in your database.
  * @throws InternetConnectionException
  */
 public Integer update(String sql, HttpClient client) throws InternetConnectionException {
   return mService.update(this.mToken, sql, client);
 }