One of the most important steps in desiging a database is establishing the data model. Part one of a two-part article describes how to create a logical model.

In the simplest terms, a logical data model is a visual representation of the business rules and requirements covering the universe-of-discourse for a given solution or enterprise, along with some ...

Under far too many circumstances, those responsible for modeling data are ignoring the above perspective on primary keys and are simply defining surrogate keys for everything in their data model. One ...

This process can help to streamline creating a new database or understanding the structure of an existing one. In this discourse, a data model that is existing in a MS SQL Server database is reversed ...

In this discourse, we show the procedures of building a Logical Data Model (LDM) of a company's employee database including the Employees' names, Skills, Department, Agency that provides the Employee ...

Teradata, a division of NCR Corporation, has announced the launch of the Teradata Communications Logical Data Model (LDM) Version 5.0. NCR is represented in South Africa by National Data Systems ...

DataStax says a multi-model database platform should: Support more than one post relational data model (e.g., tabular, JSON, graph) at a logical layer for ease of development for application ...

This approach features a centralized database linked to other data stores with a common data model that carries information from one point to another, without the need to rewrite code.

Water environment Treatment Engineering the actual data of typical slope collapse and deformation of reservoir are used as the basis, and a new quantitative theory method, logical information method, ...