Devart Forums

Hi,
I would like to connect to Oracle Database 10g Express but if i use UniConnection with Oracle Provider i get error like in topic.
What can cause such effect.
I use Delphi2007
Listing up here:
[09D72FA4]{oraprovider105.bpl} Oraerroruni.RaiseError + $2C
[09D77A18]{oraprovider105.bpl} Oracalluni.LoadedOCI + $74
[09D77B77]{oraprovider105.bpl} Oracalluni.InitOCI + $10B
[09D9DD4C]{oraprovider105.bpl} Oraclassesuni.OCIInit + $0
[09DA085F]{oraprovider105.bpl} Oraclassesuni.TOCIConnection.Connect + $127
[082DC343]{unidac105.bpl} Uni.TUniTransaction.GetProvider + $6B
[20006936]{rtl100.bpl } System.@IsClass (Line 9077, "sys\system.pas" + 1) + $8

BR
Jacek

This error can be caused by a problem in the Oracle client installation. Try to reinstall Oracle client. Note that only Oracle client Express Edition can connect to Oracle Database Express Edition.

Do I need to install odbc drivers for oracle if I want to use UniDac?
I have reinstalled the whole database and the problem has occured again.
BR
Vaalar

ODBC drivers are not required for UniDAC. You can try to connect to the database in the Direct mode without using Oracle client. Set Direct=True in the SpecificOptions of TUniConnection to enable the Direct mode.

HI again,
I have an additional question,
Is it possible that i have problems with connection becouse I`m using Vista 64 bit and UniDac components use 32 bit?
BR
Jacek

UniDAC requires 32-bit Oracle client. If you installed this client, you slould not have problems.