Referential integrity is a relational database concept, which states that table relationships must always be consistent. In other words, any foreign key field must agree with the primary key that is referenced by the foreign key. Thus, any primary key field changes must be applied to all foreign keys, or not at all. The same restriction also...
An enterprise resource planning system (ERP system) is an information system that incorporates enterprise-wide internal and external information systems into a single unified solution.
ERP systems integrate the software, hardware and network resources essential for building an enterprise resource planning (ERP) information system solution. ERP systems aim to streamline business processes.
An ERP system generally includes all the IT systems that enable ERP software to execute and operate efficiently. An ERP system allows an organization to design, execute, operate and maintain an enterprise information system. This system includes the software that provides business functions and processes, computing hardware for hosting and executing software applications, and back-end network architecture for data communication across and within information systems.
An ERP system may provide services and solutions such as accounting information systems, financial information systems, production information systems, marketing information systems and human resource information systems. These systems are integrated within separate departments in an organization but are managed through a central administrative console for each module.
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