The BLOB data type in database is introduced,the method of unified accessing files of different types using BLOB data type in Delphi is explored,and the key codes of accessing files of different types in MS SQL Server 2000 database is given.
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介绍了数据库中的BLOB数据类型;探讨了在Delphi中如何利用BLOB数据类型对各种文件作统一存取;并给出了在MS SQL Server 2000数据库中实现统一存取各种文件的关键代码.