"Surface semantic models" are used in the logical data base design process to increase this involvement. A special type of this, called a "hierarchical external view model", is proposed. It has been successfully used to develop a logical data base for the Department of Aging in Pennsylvania....
Database Design I: Structure This chapter is the first of three devoted to the topic oflogical database designin the temporal context. Database design in that context has the potential to be a much more complicated matter than its analog in the conventional (nontemporal) context. There are ...
解析 designed【答案】designed【核心短语/词汇】logical thinking:逻辑思维【翻译】据说这个项目是为培养孩子的逻辑思维而设计的。【解析】根据句意可知,此处要表达“设计”这一含义,因为主语“this project(这个项目)”和“design(设计)”之间是被动关系,所以此处填动词“design”的过去分词“designed”。
A data model helps design the database at the conceptual, physical and logical levels. Data Model structure helps to define the relational tables, primary and foreign keys and stored procedures. It provides a clear picture of the base data and can be used by database developers to create a ...
Database design Development Internals & architecture Installation Migrate & load data Migration documentation SQL Server Integration Services (SSIS) > Bulk Copy Utility (bcp) Azure Migration Services > Data Quality Services (DQS) Replication Overview Ho...
What is the logical definition describing the different categories of users and the systems and applications users have access to? Does the design account for adding more hardware to the system as required by the increase in web traffic over time?
Summary: This is the seventh in a series of articles on a logic-based approach to business data and rules using a single language to both create and query data models. The previous article focused on how to declare simple set-comparison constraints (i.e. subset, exclusion, and equality ...
This page looks at the multi-board schematic as the means of capturing the logical system design in a multi-board project, placing and connecting modules that represent each child PCB and their interconnectivity
In the optimum case, the database cache and the entry cache fit into the physical memory available. The entry caches are large enough to hold all entries in the directory. The database cache is large enough to hold all indexes and entries. In this case, searches find everything in cache...
modeling, Relational (Schema), Data Types or Object Types modeling, and Multidimensional modeling and DDL generation. It includes importing from and exporting to a variety of sources and targets, provides a variety of formatting options and validates the models through a predefined set of Design...