Database applications let users interact with the information that is stored in the databases. Databases provide structure for the information, and allow it to be shared among different applications.
Delphi provides support for relational database applications. Relational databases organize information into tables, which contain rows (records) and columns (fields). These tables can be manipulated by simple operations known as the relational calculus.
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dbGo provides the developers with a powerful and logical object model for programmatically accessing, editing, and updating data from a wide variety of data sources through OLE DB system interfaces. The most common usage of dbGo is to query a table or tables in a relational database, retrieve and display the results in an application, and perhaps allow users to make and save changes to the data. The ADO layer of an ADO-based application consists of the latest version of Microsoft ADO, an OLE DB provider or ODBC driver for the data store access, client software for the specific database... more | |
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The Borland Database Engine (BDE) is a data-access mechanism that can be shared by several applications. The BDE defines a powerful library of API calls that can create, restructure, fetch data from, update, and otherwise manipulate local and remote database servers. The BDE provides a uniform interface to access a wide variety of database servers, using drivers to connect to different databases. The components on the BDE category of the Tool Palette enable you to connect to database information using the BDE. When deploying BDE-based applications, you must include the BDE with your application. While this increases the size of... more | |
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dbExpress is a set of lightweight database components that provide fast access to SQL database servers. For each supported database, dbExpress provides a driver framework that adapts the server-specific software to a set of uniform dbExpress interfaces. When you deploy a database application that uses dbExpress, you include a DLL(the server-specific driver) with the application files you build. dbExpress lets you access databases using unidirectional datasets. Unidirectional datasets are designed for quick lightweight access to database information, with minimal overhead. Like other datasets, they can send an SQL command to the database server, and if the command returns a set... more | |
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InterBase Express (IBX) is a set of data access components that provide a means of accessing data from InterBase databases. The InterBase Administration Components, which require InterBase, are described after the InterBase data access components. | |
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dbExpress's top level framework and metadata support has been rewritten in Delphi. It has new, richer metadata support. The DbxClient driver remotes the dbExpress 4 framework interface over a network based transport. This document discusses the following features:
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