代数操作 meaning in English

algebraic manipulation

Db2 udb does not have native support for bit or boolean data types , neither for bitwise operation nor for boolean algebra operations
Db2 udb没有为位数据类型或布尔数据类型提供本机支持，它既不支持逐位操作，也不支持布尔代数操作。
Currently , wiis has been an important research direction . this dissertation mainly focuses on some key problems in wiis : common data model , query optimization , cooperation and learning to enhance performance of wiis . the main contributions of this dissertation are as follows : ( 1 ) firstly , the current approaches of information integration are summarized and classified
( 2 )提出了一种面向xml的公共数据模型xcdm ，该模型针对已有的半结构化数据源模型( oem和oim )在表达xml文档时存在的缺陷，将oim的有向图结构与xml语言的相关特性相结合，并补充了oim对象代数的六种代数操作。