用OO4O操作Oracle数据库的大数据字段

Operation of Big Data Fields of Oracle Database by OO4O

在现有数据库设计中,部分表经常设计用于存储图像、音频、视频等大数据量信息的大数据字段。本文介绍了在VC++编程环境下,用 OO4O 方法读写 Oracle 数据库的大数据字段的方法。针对 LONG RAW、BLOB(CLOB)等不同的大数据字段,提出了相应的读写方法。OO4O 支持多种编程语言,在速度和兼容性上具有一定的优势。

In the existing database design, some tables are frequently used in saving the big data fields of large data-volume informarion, such as image, audio, video and so on. This article introduces the method of operating the big data fields of Oracle database with OO40 under the VC＋＋ programming environment. It proposes the corresponding read-write methods according to different big data fields such as LONG RAW, BLOB（CLOB） and so on. OO40 supports many kinds of programming language and has certain superiority in speed and compatibility.