Hello, Precious!

Monday, March 11, 2013, 7:54:34 PM, you wrote:

PS> Try to use the dbexpress. Its built in delphi xe2 and already has support
PS> in firebird.

I do not suggest dbExpress for several reasons:
- Embarcadero closes dbExpress (like Borland closed BDE in 2002), and
replacement is FireDAC (former AnyDAC). Unfortunately, it is only
available for Delphi XE3 Enterprise users, and can be bought by XE3
Professional users (also it can be installed for previous Delphi
versions)

- dbExpress, like BDE, have almost no transaction control.
SQLConnection.BeginTransaction method is nearly useless, because
a) it does not support special IB/FB transaction parameters
b) it does not allow to start 2 transactions at the same time

Thus, I suggest to stay with IBX, or, to buy FIBPlus, or,
to upgrade to XE3 and get FireDAC. These are direct access components
(instead dbExpress, BDE, ODBC, OLE DB, etc), and have full control
over IB/FB API capabilities.

Yes, IBX have some incompatibilities with FB, for example, in unicode
support (in Delphi 2009/2010, XE-XE3), but it can be easily fixed in
IBX sources
(like at the end of the article, about
Division by zero error in IBX Delphi 2009
http://www.ibase.ru/unicode_faq.html
- it's in russian, but code is understandable, and for the
text you can use google translate)


--
Dmitry Kuzmenko, www.ib-aid.com