$checkcmd :
$disable :
checkquery( $sql)
parseParameter( $params, $glue = ',', $alias = '')
parseSelect( $field = array(), $alias = '')
parseLimit( $limit, $inpage = true)
parseOrderby( $orderby, $alias = '')
parseGroupby( $statement, $alias = '')
stripSafeChar( $sql)
parsePlaceholder( $field, $suffix = '')
parseFieldAlias( $field, $alias = '')