isql does not work properly

Posted on 2003-03-12
Medium Priority
Last Modified: 2008-02-01
I have Win2K machine with SQL Server 2000, SP2
I'm trying to execute isql from the command line, passing correct SQL Server instance name, account and password

I'm getting the following error:
CT-LIBRARY error: ct_connect(): directory service layer;internal directory service control layer;Requested server name not found

osql and isqlw work completely fine
Question by:dessi
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Expert Comment

ID: 8122792
Try to ping the server. i.e.

C:\> Ping MyServer

If you have problems or the IP is not correct, try creating an alias in the Client Configuration Utility.

If the server is on your local machine, use localhost as a server name.

Other than that:

What is your command string (you can exclude the username and password)?


Author Comment

ID: 8122893
The server is on the local machine, The instance name is diferent than the machine name

The command line is


Accepted Solution

Frostbyte_Zero earned 1000 total points
ID: 8123076
According to SQL Server 2000 Documentation:

All DB-Library applications, such as isql, work as SQL Server 6.5–level clients when connected to SQL Server 2000. They do not support some SQL Server 2000 features. DB-Library and Embedded SQL for C do not support multiple instances. The osql utility is based on ODBC and does support all SQL Server 2000 features. Use osql instead.

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Expert Comment

ID: 8126516
Unless i'm much mistaken you've also got the sybase client or server installed on this machine. e.g. for the sybase odbc drivers. When you install sybase it puts its 'bin' at the start of the PATH so you are actually running the sybase isql! - which doesn't work with sql2000 hence you get this error.

2 ways to fix it, use the full path to isql.exe or, my preference, change the path to put the sybase directories at the end.

Expert Comment

ID: 9275950
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Expert Comment

ID: 11093055
No comment has been added to this question in more than 257 days, so it is now classified as abandoned.

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   Accept: Frostbyte_Zero http:#8123076

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