We can realize the operation of basic geographic information database by current data accessing engine, including the connect and disconnect the database, read and write data or big data document, supporting the multiuser access at one time. 3. 通过所研制的通用数据库访问引擎,实现了对基础地理信息数据库的操作,包括连接、断开数据库,对数据库数据及大数据文件的读写,并支持多用户同时进行并发访问等。