Toad World® Forums

You have no Oracle client installed


I am getting this message “You have no Oracle client installed”

on machine:
Windows 7 Professional 64bit
Oracle 11g R2 (11.2.0) is installed I don’t want to install oracle client.
tnsnames.ora is working fine because Oracle SQL Developer and SQL Plus are working fine.
System variables PATH and ORACLE_HOME are set correctly

Please help me fixing this problem.


which binary is producing this error…sqlplus.exe…toad.exe …something else?

Martin Gainty

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Toad is a 32 bit application, you need to install 11.2.0 32 bit Oracle client.

You don’t have a choice, if you want to use Toad, you need an Oracle client. SQL Developer is using JDBC…that’s probably why you are seeing a difference.


Hey Martin,

it’s a 64-32 bit problem. Jeff is on the case.

Toad is 32 bit until Delphi becomes able to create 64 bit applications,
we will always have to run Toad against a 32 bit Oracle client. The OP
mentioned that they had installed Oracle 64 bit and didn’t want to
install a separate version of Oracle Client.

Norm. [TeamT]

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