基于关系型数据库与NoSQL的海量数据处理

he problem of reading and writing of large amount of data is a key problem in large-scale database application system. In the face of data types and large amount of medical device data, the traditional relational database has certain limitations. This article proposes a way of the combination of relational database and NoSQL, with NoSQL storage of massive medical device data, relational database storage of data which requires high security and strong transactional information. It solved the problem and ensure the high security and strong transaction in the massive storage of medical apparatus data system at the same time.