SQL Server Data Access Components (SDAC) 关于

从您的 VCL 应用程序提供对 SQL 服务器数据库的数据访问。

SQL Server Data Access Components (SDAC) is a library of components that provides native connectivity to SQL Server from Delphi and C++Builder including Community Edition, as well as Lazarus (and Free Pascal) for Windows, Linux, macOS, iOS, and Android. SDAC-based applications connect to SQL Server directly through OLE DB, which is a native SQL Server interface. SDAC is designed to help programmers develop faster and cleaner SQL Server database applications.

SQL Server Data Access Components (SDAC) Features

  • Native Connectivity to SQL Server - SDAC-based DB applications are easy to deploy, do not require installation of other data provider layers (such as BDE and ODBC), and that's why they can work faster than the ones based on standard Delphi data connectivity solutions. Moreover, SDAC provides working with SQL Server not only through OLE DB, but through SQL Native Client as well.
  • Wide Coverage of SQL Server Features - SDAC supports a wide range of SQL Server specific features, such as Transparent Application Failover, Notification, Queing and reliable messaging, SQL Server Compact Edition, User-defined Types (including HierarchyID, Geography, Geometry), Table-Valued Parameters, Filestream, and others.
  • Cross-Platform Development in Delphi, C++Builder, and Lazarus - SDAC is a cross-platform solution for developing applications using SQL Server and various IDEs: RAD Studio, Delphi, C++Builder, Lazarus (and FPC) on Windows, macOS, Linux, iOS, Android, and FreeBSD for both x86 and x64 platforms. SDAC also provides support for the FireMonkey application development platform, which allows you to develop visually spectacular high-performance desktop and mobile native applications.
  • High Development Productivity with SDAC - Provides various GUI tools that will increase your productivity: dbMonitor allows monitoring activity of your DB applications, Dataset Manager simplifies DataSet and DB controls tweaking, and others.
  • Direct Mode - Allows your application to work with SQL Server directly via TCP/IP without involving SQL Server Client, thus significantly facilitating deployment and configuration of your applications.
  • Mobile Development - Development for iOS and Android mobile devices using SDAC becomes easier, as SDAC allows your mobile applications to work with SQL Server database as simply as desktop applications do.
  • DB Compatibility - SQL Server, SQL Server Compact and SQL Azure
  • IDE Compatibility - The product is compatible with the latest IDE versions and editions including Community Edition.
  • Data Type Mapping - If you want to make custom correspondence between SQL Server and Delphi data types, you can use a simple and flexible Data Type Mapping engine provided by SDAC.
  • Development Platforms - Now you can develop not only VCL-based applications in Delphi and LCL-based ones in Lazarus, but also use the newest FireMonkey application development platform.
  • Performance - All the components and libraries are designed to help you write high-performance, lightweight data access layers, therefore they use advanced data access algorithms and techniques of optimization.
  • Monitoring - Use the dbMonitor tool to monitor and analyze all the DB calls made by your application using SQL Server data access components. dbMonitor performs per­component tracing of SQL statement execution, commits, rollbacks, etc.

The Standard edition includes the SDAC basic connectivity components and SDAC Migration Wizard. SDAC Standard Edition is a cost-effective solution for database application developers who are looking for overall high-performance connectivity to SQL Server.

The Professional edition shows off the full power of SDAC, enhancing SDAC Standard Edition with support for SQL Server-specific functionality, access to the Direct mode for connecting to the SQL Server directly via TCP/IP, and advanced dataset management features.

You can get Source Access to the implementation of all the component classes in SDAC by purchasing the special SDAC Professional Edition with Source Code. The source codes of DataSet Manager and Migration Wizard are not distributed. The source code of SQL Server Direct Mode is distributed obfuscated.