Data binding is the process that establishes a connection between the application UI and business logic. If the binding has the correct settings and the data provides the proper notifications, then, when the data changes its value, the elements that are bound to the data reflect changes automatically. Data binding can also mean that if [...]
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Data warehouses exist to facilitate complex, data-intensive, and frequent adhoc queries. The data warehouse access component supports enhanced spreadsheet functionality, efficient query processing, structured and adhoc queries, data mining, and materialized views. These offer pre-programmed functionalities such as : – Roll-up : Data is summarized with increasing generalization. – Drill-down : Increasing levels of details [...] A relationship is an association between several entities. A relationship set is a set of relationships of the same type. A relationship type R among n entity types E1, E2,….., En defines a set of associations or a relationship set among entities from these types. In ER diagrams, relationship types are displayed as diamond-shaped boxes, [...] WHAT IS DBMS ? – To be able to carry out operations like insertion, deletion and retrieval, the database needs to be managed by a substantial piece of software; this software is usually called a Database Management System(DBMS). – A DBMS is usually a very large software package that enables many different tasks including the [...] |
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