面向数据库的规则引擎，从规则库中读取规则并根据相应的数据映射表进行规则解析，通过解析后规则对原始数据库中的数据进行检查并返回异常数据-Database-oriented rules engine, read the rules from the rule base and according to the data mapping table parsing rules, check the rule after parsing the data in the original database