###1 HTTP/1.1协议中共定义了八种方法(有时也叫"动作")来表明Request-URI指定的资源的不同操作方式: OPTIONS 返回服务器针对特定资源所支持的HTTP请求方法.也可以利用向Web服务器发送'*'的请求来测试服务器的功能性. HEAD 向服务器索要与GET请求相一致的响应,只不过响应体将不会被返回.这一方法可以在不必传输整个响应内容的情况下,就可以获取包含在响应消息头中的元信息. GET 向特定的资源发出请求.注意:GET方法不应当被用于产生"副作用…
oracle官方文档提示:If you had specified DELETE INPUT rather than DELETE ALL INPUT, then RMAN would have only deleted the specific archived redo log files that it backed up. For example, RMAN would delete the logs in /arc_dest1 if these files were used as t…