Classes are available to convert both numeric and character data. 提供了用于转换数值和字母数据的类。
Numeric used only character type codes when specifying data types ( but initializers in Numarray can still accept the old character codes). Numeric在指定数据类型时只使用字符类型编码(但是Numarray中的初始化软件仍然接受老的字符编码)。
In this paper the order preserving encryption for numeric data is analyzed. An order preserving encryption method for character data in relational databases is proposed. 对数值型数据保持顺序加密方法进行了分析,在此基础上提出了一种在关系数据库中针对字符数据的保序加密方法。
Based on the order preserving encryption method for numeric data, this paper proposes a fuzzy match encryption method for character data in the database. Encryption principle, process, algorithm property and robustness analysis are described. 在分析数值型数据的保序加密方法的基础上,提出了一种针对字符数据的模糊匹配加密方法,阐述了其加密原理、过程、算法特性和鲁棒性。
A synthetical encryption scheme on attribute-grain and a synthetical cipher index technology in the DAS model to eliminate redundant data are presented through considering numeric data and character data respectively. 本文以消除冗余数据为目标,从字符数据和数值数据两方面考虑,提出了DAS模型中基于属性粒度的综合加密方案和适用于DAS模型的综合密文索引技术。