Unified database access system based on multi-source heterogeneous data analysis

The invention discloses a unified database access system based on multi-source heterogeneous data analysis, which connects a collector, a state server and an access tool together based on a distributed message component, and consists of a plurality of key groups, including a collection group, an election group and a notification group, by establishing a logic database, various databases are gathered in the same logic database, and a standard JDBC drive is provided. connection is established with different types of databases, physical cross-database associated query is achieved through operation on a logic database, thereby realizing unified access of a multi-source heterogeneous database, finishing data fusion analysis, and providing a unified entrance for an application to access multipletypes of databases at the same time; unified metadata management, SQL request analysis, SQL statement conversion, distributed query, multi-source joint query and database connection agency are realized. 本发明公开了一种基于多源异构数据分析的统一