The Quest Error Manager (QEM) is a framework that will help you standardize the management of errors in a PL/SQL-based application. With QEM, you can register, raise and report on errors through an API that makes it easy for all developers to perform error management in the same way, with a minimum amount of effort. Error information is logged into the instance (general information about the error) and context (application-specific name-value pairs) tables. You should install QEM separately for each application you build. QEM also offers programs that: substitute for DBMS_OUTPUT.PUT_LINE; trace execution of your application; and assert or validate assumptions.
工具下载地址：
http://www.toadworld.com/m/freeware/560.aspx
另外有需要云服务器可以了解下创新互联cdcxhl.cn，海内外云服务器15元起步，三天无理由+7*72小时售后在线，公司持有idc许可证，提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案，具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势，专为企业上云打造定制，能够满足用户丰富、多元化的应用场景需求。