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Data Access Components for MySQL (MyDAC) is a library of components that provides direct access to MySQL database servers from Delphi, Delphi for .NET, C++Builder and Kylix. MyDAC can connect directly to MySQL server or work through the MySQL client library. The MyDAC library is designed to help programmers develop faster and cleaner MySQL database applications.

　　MyDAC is a complete replacement for standard MySQL connectivity solutions and presents an efficient alternative to the Borlａnd Database Engine for access to MySQL.

特征綜述 About Feature

Components
All editions of MyDAC include the following basic components:

• TMyConnection - lets you set up and control connections to MySQL database server
• TMyQuery - uses SQL statements to retrieve data from MySQL table or tables and supply it to one or more data-aware components through a TDataSource component and provides flexible data update functionality
• TMyTable - allows to retrieve and update data single table without writing SQL statement
• TMyStoredProc - executes stored procedures and functions
• TMyCommａnd - executes SQL statements and stored procedures, which do not return rowsets
• TMyScript - executes sequence of SQL statements
• TMyUpdateSQL - lets you tune update operations for a DataSet component
• TMyDataSource - provides an interface between a MyDAC dataset components and data-aware controls on a form
• TMySQLMonitor - allows to monitor dynamic SQL executing in MyDAC based applications
• TMyConnectDialog - allows you to build custom prompts for usernames, passwords, and servers
• TCRDBGrid - extends TDBGrid capabilities, provides visual access to filters and incremental search
• TVirtualTable - provides dataset functionality for data that has no real database connection
• MyDataAdapter - .NET component, uses TDataSet as data source for retrieving and saving data to System.Data.DataSet
• MyDAC Professional Edition and MyDAC Developer Edition include the following additional components:
• TMyLoader - provides quick loading data to MySQL database
• TMyDump - serves to store a database or its parts as a script and also to restore database from received script
• TMyBackup - serves for backup copying specified tables on the server
• TMyServerControl - serves to control the server and execution of standard service tasks
• TMyEmbConnection - is used to establish connection to MySQL Embedded server
• TMyBuilder - serves to manage SQL Builder for MySQL Add-in
• TMyMetaData - retrieves metadata on specified SQL object
• TCRBatchMove - transfers data between all types of TDataSet descendants

• Direct access to server data without using client library. Does not require installation of other data provider layers (such as BDE and ODBC)
• VCL, VCL.NET, and CLX versions of library available
• Full support of the latest versions of MySQL Server
• Support for all MySQL Server data types
• Disconnected Model with automatic connection control for working with data offline
• Local Failover for detecting connection loss and implicitly reexecuting certain operations
• All types of local sorting and filtering, including by calculated and lookup fields
• Automatic data updating with TMyQuery, TMyTable, and TMyStoredProc components
• Unicode and national charset support
• Supports many MySQL-specific features, such as locking, SET and ENUM types
• Advanced script execution functionality with TMyScript component
• Support for using macros in SQL
• Integration with MyDeveloper Tools for performing advanced database development and administration tasks
• Easy migration from BDE with Migration Wizard
• Lets you use Professional Edition of Delphi and C++Builder to develop client/server applications
• Includes annual MyDAC Subscription with Priority Support
• Licensed royalty-free per developer, per team, or per site

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