SQL Server Data Access Components (SDAC)

What's new in SQL Server Data Access Components (SDAC) V6.0.1?

• Embarcadero RAD Studio XE2 now supported
• Application development for 64-bit Windows now supported
• FireMonkey application development platform now supported
• Support of master/detail relationship for TVirtualTable added
• OnProgress event in TVirtualTable added
• TDADataSetOptions.SetEmptyStrToNull property that allows inserting NULL value instead of empty string added
• Bug with excess memory allotment on recordset opening for SQL Server Compact Edition is fixed

What's new in SQL Server Data Access Components (SDAC) V5.10?

• Lazarus 0.9.30 and Free Pascal 2.4.2 support
• Support for Table-Valued Parameters has been added
• A TMSTableData component for storing data of Table-Valued Parameter type has been added
• Support for an API interface for managing FILESTREAM data has been added
• Support for SQL Server Compact Edition 4.0 has been added
• Bug in bookmark validity check has been fixed
• Bug with processing varchar(max) output parameters in stored procedure has been fixed
• Bug with using empty string in the Filter property has been fixed

What's new in SQL Server Data Access Components (SDAC) V5.00?

• Embarcadero RAD Studio XE supported

What's new in SQL Server Data Access Components (SDAC) V4.80?

• Embarcadero RAD Studio 2010 supported
• Added the TCustomMSDataSet.HasNextResultSet method to check if the next recordset is available
• Now the subdetail is refreshed before the AfterRefresh event of the detail is called
• Fixed bug with processing DateTime fields on table locking

What's new in SQL Server Data Access Components (SDAC) V4.70?

• Delphi 2009 and C++Builder 2009 supported
• Extended Unicode support for Delphi 2007 added (special Unicode build)
• Free Pascal 2.2 supported
• Powerful design-time editors implemented in Lazarus
• Completed with more comprehensive structured Help

What's new in SQL Server Data Access Components (SDAC) V4.?

• CodeGear RAD Studio 2007 supported
• Added enhanced support for User-defined Types of SQL Server
• Added support for distributed transactions with the new TMSTransaction component
• Added support for Query Notifications with the new TMSChangeNotification component
• Improved support for SQL Server Compact Edition with the new TMSCompactConnection component
• Added support for getting results from queries with the FOR XML clause in readable view
• Added ability to lock records and tables
• TMSMetaData is enhanced with more schema row sets
• Added support for connection encryption without certificate validation
• Added ability to force record fetch for datasets open in FetchAll=False mode
• Added support for detailed error messages output to DBMonitor
• Added the OnProgress event in TMSLoader

SQL Server Data Access Components V4.0 Improvements

• SQL Server Compact Edition supported
• Multiple Active Result Sets (MARS) and other new SQL 2005 features supported
• Added new TMSLoader, TMSDump, TCRBatchMove, TMSScript and TMSServiceBroker components
• Added asynchronous execute and fetch modes
• Compressed BLOBs support

SDAC uses OLE DB directly through a set of COM-based interfaces that expose data from a variety of sources. OLE DB interfaces provide applications with uniform access to data stored in diverse information sources, or data stores. These interfaces support the amount of DBMS functionality appropriate to the data store, enabling the data store to share its data.

Using BDE in MS SQL Server oriented client/server applications has some deficiencies. In many cases BDE community are unable to employ server specific features, they must tolerate excessive usage of resources, reduced speed of processing data, restricted distribution of an application and its administration.

Using BDE in database applications amounts to the following data path between server and client:
[SQL Server] <-> [DBLibrary] <-> [SQL Links] <-> [BDE] <-> [Application]

SDAC works directly through OLE DB, which is a native MS SQL Server interface. Applications with SDAC components access server directly:
[SQL Server] <-> [OLE DB] <-> [Application]

SDAC includes following components:

• TMSConnection - controls server connection;
• TMSQuery - queries execution, operates record set, flexible way updating database tables;
• TMSSQL - executes SQL statements;
• TMSTable - allows to retrieve and update data single table without writing SQL statement;
• TMSStoredProc - executes stored procedures and functions;
• TMSSQLMonitor - allows to monitor dynamic SQL executing in SDAC based applications;
• TMSConnectDialog - serves for enter username, password and server name;
• TMSMetaData - allows to retrieve embracing metadata on specified SQL object;
• TVirtualTable - dataset stores data in memory.

Only Professional, Enterprise and Architect editions are supported.

SQL Server Data Access Components comes in two editions: SDAC Standard Edition and SDAC Professional Edition.

SDAC Standard Edition includes the SDAC basic connectivity components and the SDAC Migration Wizard. SDAC Professional Edition includes additional components.

Standard

• Base Components (TMSConnection, TMSQuery, TMSSQL, TMSTable, TMSStoredProc, TMSUpdateSQL, TMSSQLMonitor, TMSConnectDialog, TMSScript, TMSDataSource, TCRDBGrid, TVirtualTable, MSDataAdapter)
• Design-time features, including component editors and property editors
• DataSet Manager
• Migration Wizard

Professional

• Additional Components(TMSLoader, TMSDump, TMSServiceBroker, TMSMetadata, TCRBatchMove)
• Base Components (TMSConnection, TMSQuery, TMSSQL, TMSTable, TMSStoredProc, TMSUpdateSQL, TMSSQLMonitor, TMSConnectDialog, TMSScript, TMSDataSource, TCRDBGrid, TVirtualTable, MSDataAdapter)
• Design-time features, including component editors and property editors
• DataSet Manager
• Migration Wizard

Following are the main features of SQL Server Data Access Components:

• No distribution, installation and configuration is required for BDE and ODBC;
• You can use any Delphi Professional Edition to develop client/server applications;
• VCL and VCL.NET versions of library
• Supports MS SQL Server specific features: windows authentication, metadata, unicode fields, manual refresh for record in a dataset, automatic getting Identity value and results of triggers work and a lot of more;
• Simplifies data updating;
• Speeds up fetch of records from database;
• Provides automatic refresh for records;
• Advanced design time editors;
• Interface (methods, properties) of SDAC components is similar to those of standard BDE data access components (TDatabase, TQuery, ..);
• Extended SQL tracing capabilities provided by TMSSQLMonitor component and DBMonitor application;
• Includes source code of TCRDBGrid enhanced data-aware grid control;
• Wide data-aware and reporting components support, including InfoPower, ReportBuilder, FastReport;
• and many other features.