莱鸟刚学数据库的问题DATABASE ENGINNE ERROR(50分)

正在做一个小的图书管理系统
我用INTERBASE建完一个LIBRARY后，在C++BUILDER设置几个TABLE的TABLENAME，总弹出对话框
Unknown database
Unable to complete network request to host "IB_SERVER".
Failed to locate host machine.
The specified name was not found in the
hosts file ordo
main Name Services.

你连Table的databaseName都没设对吧.