本文主要的研究内容如下：第一，基于数值型属性的关系数据库水印技术的研究。
In this paper, the study reads as follows: First, based on the numeric attributes of a relational database watermarking technology research.
数据库技术具有广阔的应用，数据库水印就成为一个研究热点。
Because of the increasing use of relational database, database watermarking technique has become a studying focus.
关系数据库数字水印技术能够很好的解决数据库的版权归属问题。
Relational database digital watermarking technology can be a good solution to the database is a copyright issue.
关系数据库数字水印技术能够很好的解决数据库的版权归属问题。
Relational database digital watermarking technology can be a good solution to the database is a copyright issue.
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