| 术语 | view |
| 释义 | view 视图 1. A relational database object. It is a virtual table that has no storage of its own and derived from a table that is physically stored in the database. A view often is used in the same manner as a table and makes it possible for different users to see different versions of the same data and can be used together with the authorization schema to control a user's access to sensitive data. 关系数据库的专用名词。视图是一个虚表，它自己没有存储空间，而是从实际存放在数据 库中的表中导出的。视图用法与物理表相同，并可使不同用户看到同样数据的不同格式，以 及利用授权模式控制用户对敏感数据的存取。 2. A data schema, especially a data subschema in a relational data system. 关系数据系统中的数据模式，特别是子模式。 3. A subset of the database defined by a single relation, or by combining fields from two or more relations (or other views) into a single “virtual” relation. 数据库的一个子集，它是通过定义一个关系或联合两个至多个关系(或其它视图)中的多个字 段为一个“虚”关系而得到的。 |
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