public int execute(String sql) throws SQLException {
  if (logger.isDebugEnabled())   logger.debug("Executing SQL: " + sql);
  return statement.executeUpdate(sql);
}

public int execute ( String sql ) throws SQLException { if ( logger . isDebugEnabled ( ) ) logger . debug ( "Executing SQL: " + sql ) ; return statement . executeUpdate ( sql ) ; }
executes a sql statement .
