[abstract]
At present, the global database market competition is very fierce, the mainstream Oracle, SQL Server, DB2 a situation of tripartite confrontation, and other small database software provider. The Oracle database is currently one of the commercial relational database is large, compared with other database, he has a good system of mechanism, data processing ability strong, great reliability, safety, convenient maintenance and management, but also has the leading business intelligence. Oracle database with its high speed, stable throughout the industry, the market share of no doubt. Oracle is the database market share the highest commercial database, in the global market share of close to 50%. Has been widely used in government departments, telecommunications, finance, insurance, energy, traffic, shop, science and education, petrochemical, aerospace and other industries.
With the continuous growth of database application system volume, the increase of business, factors such as the increase in traffic, appear gradually system, using the Orcle database, the response speed of decline slowed, query. There are many performance problems in Oracle database, in order to solve the influence factors of the development of enterprises, the performance optimization of Oracle has become the core of the problem. Therefore, it is necessary to the performance of Orcle adjustment and optimization, to achieve the ideal and the best running state.
