摘要
现在数据库已经广为利用,但是这些已有的数据库其库结构是多样的.我们想对这些数据库进行检索、查询和统计,不可能对不同的数据库编写不同的程序;另外,要对于各库中的字段名进行检索、查询和统计,这样就需要有一种方法来对这些不同的数据库不同数据表不同字段进行遍历.
Nowadays database has been widely used.But the structure of the database is various.If we want to search,seek and count up these database.Possibly we have to encode different programme as to the different database.In addition,when the fields name of each database is different。So a kind of method is needed to seek the fields in the different data form of the different database.
出处
《淮北煤师院学报(自然科学版)》
2001年第4期14-17,共4页
Journal of Huaibei Teachers College(Natural Sciences Edition)