Oracle Data Access Components (ODAC) is a library of components that provides native connectivity to Oracle from Delphi, Delphi for .NET, C++Builder and Kylix. The ODAC library is designed to help programmers develop faster and cleaner Oracle database applications. ODAC is a complete replacement for standard Oracle connectivity solutions and presents an efficient native alternative to the Borland Database Engine and dbExpress for access to Oracle.
特征综述 About Feature
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ComponentsAll editions of ODAC include the following basic components:
- TOraSession - lets you set up and control connections to Oracle
- TOraQuery - executes queries, operates record set, provides flexible way updating database tables with automatically building INSERT, DELETE, UPDATE statements
- TSmartQuery - easy in using traffic-efficient alternative to TOraQuery for working with large tables with lots of fields, includes Smart Refresh functionality in Professional and Developer Editions
- TOraTable - lets you retrieve and update data in a single table without writing SQL statements
- TOraStoredProc - executes stored procedures and functions, allows to edit cursor data returned as parameter
- TOraSQL - executes SQL statements, PL/SQL blocks, stored procedures
- TOraScript - executes sequences of SQL and PL/SQL statements
- TOraUpdateSQL - lets you tune update operations for a DataSet component
- TOraNestedTable - controls nested table's data
- TOraDataSource - provides an interface for connecting data-aware controls on a form and ODAC dataset components
- TOraSQLMonitor - allows to monitor dynamic SQL executing in ODAC based applications
- TConnectDialog - allows you to build custom prompts for usernames, passwords, and server names
- TVirtualTable - provides dataset functionality for data that has no real database connection
- OraDataAdapter - .NET component, uses TDataSet as data source for retrieving and saving data to System.Data.DataSet
ODAC Professional Edition and ODAC Developer Edition include the following additional components:
- TOraPackage - provides a straightforward way to access Oracle packages
- TOraLoader - allows you to quickly load data into Oracle databases
- TOraAlerter - allows you to transfer messages between sessions
- TOraTransaction - provides discrete transaction control over sessions, can be used to manipulate both simple and distributed transactions
- TOraQueue - lets you monitor the message queue, provides an interface for enqueuing and dequeuing messages
- TOraQueueTable - manages queue tables
- TOraQueueAdmin - manages Oracle queues
- TOraChangeNotification - allows you to use Oracle Database Change Notifications
- TOraTrace - allows you to start and stop the SQL trace for a specified session
- TOraErrorHandler - translates error messages
- TBDESession - allows to integrate ODAC components into BDE based application
- TOraMetaData - retrieves metadata on specified SQL object
- TOraProvider - provides data to and applies updates from a client dataset
- TCRBatchMove - transfers data between all types of TDataSet descendants
Key FeaturesThe following list describes the main features of Oracle Data Access Components.
- Direct access to server data. Does not require installation of other data provider layers (such as BDE and ODBC)
- In Direct mode does not require Oracle client software and works directly through TCP/IP
- VCL, VCL.NET, and CLX versions of library available
- Full support of the latest versions of Oracle
- Support for all Oracle data types
- Disconnected Model with automatic connection control for working with data offline
- Local Failover for detecting connection loss and implicitly re-executing certain operations
- Oracle Transparent Application Failover support
- All types of local sorting and filtering, including by calculated and lookup fields
- Automatic data updating with TOraQuery, TSmartQuery, and TOraTable components
- Unicode and national charsets support
- Distributed transaction support
- Oracle Advanced Queuing support
- Support for many Oracle-specific features, such as alerts, pipes and direct path interface
- Advanced script execution functionality with TOraScript component
- Support for using Macros in SQL
- Integration with OraDeveloper Tools for performing advanced database development and administration tasks
- Easy migration from BDE with Migration Wizard
- Lets you use Professional Edition of Delphi, C++Builder, and Kylix to develop client/server applications
- Includes annual ODAC Subscription with Priority Support
- Licensed royalty-free per developer, per team, or per site
更新时间:2008-6-24 | 录入时间:2007-7-2 | 编辑:huhm | 审核:zhaohf
