医疗大数据下数据库合并技术的研究

Under the background of big data, healthcare data enjoys a growth of dynamic. High speed and diversity. Meanwhile, it is becoming accessible to patients, which brings new challenges to healthcare data query. The demand for preciseness-quick response is forcing healthcare data query to update to support multiple users and high concurrent. Therefore, an SQL - Combines algorithm is proposed in this paper, which based on a given cluster scale, can further more expand the database concurrency and effectively speed up the overall query. Evaluations show that the SQL - Combines technology can expand the number of concurrent requests , and reduce the query time effectively.