遍历数据库表和字段的几种方法，对mssql2000、mssql2005、mssql2008都适用，会自动判断mssql版本。sd007自己用的，在pudn.com首发，网上绝无仅有。-Traverse the database tables and fields in several ways, for mssql2000, mssql2005, mssql2008 are applicable, will automatically determine the mssql version. s