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I have been developing with Delphi for the past ten years and every attempt to breakaway from the BDE was too complicated and involved me in too much new technology. I tried virtually every new component that came out without success. I simply did not have the time or the skill to learn new tricks. Then came DAC for MySQL.

I took a complex job-recording system for a busy call centre and converted it to MySQL using the DAC tools. The datasource components and table components reacted in much the same way as Delphi standard data components, with master/detail connections proving to be no problem. Other third party tools such as Woll to Woll's Info Power components also worked seamlessly with the DAC product. I converted the whole program very quickly indeed.

With more and more users, the new program runs much faster and is much more stable.

The DAC for MySQL components loaded first time, even with a trial run and preserving test data and without those irritating glitches so often found when loading new components.

I was new to SQL database servers so getting to grips with the server connections and the many security possibilities in MySQL was a new experience but made very easy by the comprehensive help at the MySQL web site.

Mike Murray
MTM Associates Ltd, UK

DAC for MySQL™

Direct Access Components for MySQL
MicroOLAP Direct Access Components for MySQL and Delphi/C++ Builder (also known as MySQLDAC) is a Borland Delphi/C++Builder component set for direct connect to MySQL database server. DAC for MySQL allows you to create Delphi/C++Builder applications without BDE, ODBC, ADO and without libmysql.dll.

Note

If you prefer to use Borland dbExpress drivers in you development, please have a look at our dbExpress driver for MySQL (DBX4MySQL).

Top reasons to use DAC for MySQL

  • licensed per a developer without royalty fee: you don't need to purchase end-user run-time licenses at all;
  • no MySQL libraries (libmysql.dll) are required on a client workstation;
  • 100% native Delphi code;
  • support of Delphi 5-7, C++Builder 5-6, Borland Developer Studio 2005-2006 Win32 edition, Turbo Delphi 2006, Turbo C++ 2006, CodeGear RAD Studio 2007 (both Delphi 2007 and C++Builder 2007) Win32 Edition, CodeGear Delphi and C++Builder 2009, Embarcadero RAD Studio 2010 (Delphi 2010 and C++Builder 2010), Embarcadero RAD Studio XE (Delphi XE and C++Builder XE), Embarcadero RAD Studio XE2 (Delphi XE2 and C++Builder XE2), Embarcadero RAD Studio XE3 (Delphi XE3 and C++Builder XE3), Embarcadero RAD Studio XE4 (Delphi XE4 and C++Builder XE4), Embarcadero RAD Studio XE5 (Delphi XE5 and C++Builder XE5), Embarcadero RAD Studio XE6 (Delphi XE6 and C++Builder XE6), Embarcadero RAD Studio XE7 (Delphi XE7 and C++Builder XE7);
  • support of MySQL™ 3.xx/4.x/5.x/6.x;
  • only 300-400 Kb are added to your .exe file;
  • full support of stored procedures (with IN, OUT and INOUT parameters);
  • full compatibility with all the existing data-aware controls and report designers;
  • full support of the BLOB fields;
  • TDBImageEx component for JPEG images support included in the package for free (with sources);
  • TNT Unicode Controls Wrappers package for Unicode applications for free (with sources);
  • detailed help system and a lot of various demo applications;
  • and much more. Please find more details in the online documentation.

DAC for MySQL Components:

TmySQLDatabase provides discrete control over a connection to a single database in a database application.
Use TmySQLDatabase when a database application requires any of the following control over a database connection:
  • Persistent database connections;
  • Customized database server logins;
  • Transaction control;
  • Single-value queries.
TmySQLTable encapsulates a database table.
Use TmySQLTable to access data in a single database table. TmySQLTable provides direct access to every record and field in an underlying database table. TmySQLTable can also work with a subset of records within a database table using ranges and filters.
At design time, create, delete, update, or rename the database table connected to a TmySQLTable by right-clicking on the TmySQLTable and using the pop-up menu.
TmySQLQuery encapsulates a dataset with a result set that is based on an SQL statement.
Use TmySQLQuery to access one or more MySQL tables in a database using SQL statements.
TmySQLQuery component is useful because it can:
  • Access more than one table at a time (called a "join" in SQL).
  • Automatically access a subset of rows and columns in its underlying table(s), rather than always returning all rows and columns.
  • Access multi-resultset queries.
TMySQLUpdateSQL applies cached updates on behalf of queries or stored procedures that can't post updates directly.
Use a TMySQLUpdateSQL object to provide SQL statements used to update read-only datasets represented by TMySQLQuery component. A dataset is read-only either by design or circumstance. If a dataset is read-only by design, the application itself does not provide a user interface for updating data, but may institute a programmatic scheme behind the scenes. If a dataset is read-only by circumstance, it indicates that the MySQL returned a read-only result set. This usually happens for queries made against multiple tables. Such queries are, by SQL-92 definitions, read-only.
TmySQLStoredProc provides functionality for using stored procedures in MySQL.

TmySQLStoredProc works with two types of stored procedures: with or without a result set (for the first type use Open() method or set Active property to True, for the second - use ExecProc() method).

When the procedure name is put in the ProcedureName property, the component fetches information on parameters of the procedure from the server and puts it in the Params property according to parameters' types. This component provides full support of IN, OUT and INOUT parameters.
TmySQLDirectQuery is component for high-speed (3-4 times faster then with TmySQLQuery component) data fetching. But it is not TDataset compatible.
TMySQLBatchExecute component can execute SQL scripts containing more than one SQL statement.
TMySQLMacroQuery is the descendant of TMySQLQuery component and supports all of its properties, methods, events, and functionalities. The difference is in Macros and MacroChar properties which help to modify SQL script text in design-time and run-time with easy.
TMySQLMonitor monitors dynamic SQL passed to the MySQL server.
TMySQLDump allows to get SQL script with a dump of a DataBase.
This script can be executed on another MySQL server by TMySQLBatchExecute component.
TMySQLTools component allows to run MySQL diagnostic and repair operations such as Repair, Check, Analyze, Optimize, Backup and Restore.
TBDE2MySQLDAC class is intended for the easy conversion of BDE Database Objects into DAC for MySQL Database Objects.

DAC for MySQL 2.10.1 is out!

10/01/2014
This maintenance release is intended to solve several bugs and contains some minor improvements.

DAC for MySQL 2.10.0 with RAD Studio XE7 support is out!

09/17/2014
Support for Delphi XE7 and C++ Builder XE7 introduced immediately!

DAC for MySQL 2.9.8 is out!

08/28/2014
This maintenance release is intended to solve several bugs and contains some minor improvements.

DAC for MySQL 2.9.7 is out!

05/08/2014
Support for RAD Studio XE6 added, several minor improvements and bug fixes.

DAC for MySQL 2.9.6 is out!

02/06/2014
Several minor improvements and bugfixes.

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