Virtual Data Access Components (VirtualDAC)
使用 SQL 来同时查询来自不同 RDBMS 或虚拟数据集的数据。
由以下开发商制作:Devart
ComponentSource开始代理销售的日期:2005年
Virtual Data Access Components (VirtualDAC)
Virtual Data Access Components (VirtualDAC, formerly known as VirtualTable), is a library of components that extends data processing capabilities in Delphi and C++Builder on Windows, Linux, macOS, iOS and Android. VirtualDAC consists of components that allow creating in-memory data storage and executing complex SQL queries to in-memory tables when developing Delphi applications.
Virtual Data Access Components (VirtualDAC)
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Virtual Data Access Components (VirtualDAC) Features
- VirtualQuery - The TVirtualQuery component is used to retrieve data with SQL queries from sources that are TDataSet descendants. You can build complex SQL queries to in-memory data (data sources are TVirtualTable, TVirtualDataSet or another TVirtualQuery) or to data stored in different RDBMS (data sources can be TUniQuery, TOraQuery, TMSQuery, TMyQuery, etc. at the same time).
- VirtualTable - The TVirtualTable component represents in-memory...
最新新闻
从 RAD Studio 13 连接到常用数据库
September 25, 2025Product Update
Devart 数据访问组件的最新版本在整个产品系列中添加对 Embarcadero RAD Studio 13 Florence 的支持。
从 RAD Studio 12 连接到常用数据库
November 27, 2023Publisher Update
Devart 在其数据访问组件和 dbExpress 驱动程序产品系列中添加对 Embarcadero RAD Studio 12 Athens 的支持。
Virtual Data Access Components (VirtualDAC) 12.3.0
March 21, 2023新版本
改进了在“WHERE”子句中含有“IS NULL”或“IS NOT NULL”的语句的执行。
Virtual Data Access Components (VirtualDAC) 12.2.0
September 14, 2022新版本
添加对 RAD Studio 11 Alexandria Release 2 和 iOS 15 的支持。
Virtual Data Access Components (VirtualDAC) 12.1.1
April 14, 2022新版本
添加对 Embarcadero RAD Studio 11.1 Alexandria 和 macOS Monterey 的支持。
Virtual Data Access Components (VirtualDAC) 12.0.1
September 15, 2021新版本
添加对 Embarcadero RAD Studio 11 Alexandria 的支持。价格从： $ 78.35
Single Developer License: install and use the Software on one or more computers, provided it is used by 1 (one) developer for the sole purposes of developing, testing, and deploying applications in...
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