English | Chinese |
A database management system designed to manage a relational database | 用来管理关系数据库的数据库管理系统 |
By definition, the numeric value of a relational or logical expression is 1 if the relation is true, and 0 if the relation is false | 如果关系为假、则结果为数值0 |
By definition, the numeric value of a relational or logical expression is 1 if the relation is true, and 0 if the relation is false | 根据定义、在关系表达式或逻辑表达式中、如果关系为真、则表达式的结果为数值1 |
object-relational server | 对象相关服务器 |
Object-oriented technology is the most popular software development method, and relational model is wide -used data model | 面向对象技术是当今最流行的软件开发方法、关系模型是最常用的一种数据模型 |
relational VMSs | 相关式垂直营销系统 |
Structured Query Language, a standard language for querying and modifying relational databases | 结构化查询语言、一种用于查询和修改关系数据库的标准语言 |
When data has a relational structure, data access, storage, and scalability are very efficient, but -writing efficient and maintainable code becomes more difficult | 当数据具有关系结构时、在数据访问、存储和可扩展性方面会非常高效、但编写高效的、可维护的代码则变得非常困难 |