This database role is defined with the minimum rights needed by a user to access Rational System Architect encyclopedias.
该数据库角色是用访问RationalSystem Architect百科全书用户所需要的最低权限来定义的。
A login name for a Rational System Architect user needs a predefined set of server roles and database access rights.
RationalSystem Architect用户所用的登录名需要一个预定义的服务器角色及数据库访问权限。
Rational Data Architect will go through the catalog tables, also known as system tables in some database systems, and create a data model based on that information.
RationalDataArchitect将检查编目表（在某些数据库系统中也称系统表），并根据该信息创建数据模型。
On the other hand, a physical data model (PDM) which carries the DBM extension in InfoSphere data Architect, takes into account the constraints and facilities of a given Database Management System.
另一方面，InfoSphere数据架构中扩展的物理数据模型(PDM)，要考虑给定的数据库管理系统的限制和能力。
On the other hand, a physical data model (PDM) which carries the DBM extension in InfoSphere data Architect, takes into account the constraints and facilities of a given Database Management System.
另一方面，InfoSphere数据架构中扩展的物理数据模型(PDM)，要考虑给定的数据库管理系统的限制和能力。
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