With the extensive and in-depth application of database systems, especially the increasing amount of database data in practical applications in recent years, the so-called massive data has formed. Furthermore, the era of big data that everyone is talking about has arrived. The performance improvement of database systems is also facing realistic challenges in traditional database applications.
For a selected database management system (DBMS) product, the performance of the database system can be very different, it and DBMS parameter selection, database model design, application system design, software and hardware environment configuration and other factors closely related. This puts forward requirements for database administrators (ie, DBAs), application system analysts and designers, who are required to find methods or solutions to improve system performance based on actual application environments and application requirements combined with DBMS query optimization technology.
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