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Dr. Watson error while opening a recordset

Posted on 2002-04-07
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Last Modified: 2012-05-04
Well.. here's the problem. I use VBA for some automation purposes. My back-end is SQL Server. I build a query using the user-inputs(like table-name, DSN name etc).

My code runs like this...
Set wrkODBC = CreateWorkspace("", "user", "", dbUseODBC)
Set conDB = wrkODBC.OpenConnection("cnConnect", dbDriverNoPrompt, , "ODBC;DATABASE="+strDatabase+";UID=user;PWD=;DSN=" + strODBCDriver)

Set rs = conDB.OpenRecordset(strQuery, dbOpenSnapshot)

All's well until the last statement. I debugged, and when I pressed F8 on the line Set rs = ..., Dr. Watson error got thrown and Excel closed.

Pls. note that the query that I build in strQuery references the tables - syscolumns and sysobjects - read-only tables for this user.

Any help is appreciated.


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Shiva.
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Question by:Shivshankar
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10 Comments
 
LVL 44

Expert Comment

by:bruintje
ID: 6923638
Hi Shivshanskar,

Maybe a simple question but is the DSN available on the machine you try this on?

What you also could try is to set all the parts in the connection string bit by bit instead of openening the connection with a complete string at once

btw is this code from Excel to SQL Server that's not completely clear from this description

:O)Bruintje
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Author Comment

by:Shivshankar
ID: 6924934
burintje,

To answer your questions:
1. Yes, the DSN is available in my system.
2. >>What you also could try is to set all the parts in the connection string bit by bit
  Well, It was like that in the code. But, to make it look short here, I concatenated everything in one-line.
3. Yes, this is a code taken from my EXCEL macro.

Pls. advice.
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LVL 44

Expert Comment

by:bruintje
ID: 6927681
Hi Shiva, forgot to ask yesterday what is the precise error message something with -20 etc...?

:O)Bruintje
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LVL 1

Author Comment

by:Shivshankar
ID: 6931139
 EXCEL.exe
Exception: access violation(0xc0000005), Address:0x44a251d

This is all I get. Any idea ?
0
 
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Author Comment

by:Shivshankar
ID: 6955962
I'd also like to mention that this does not happens in all the cases. Excel closes only when I try to open Read-only tables.

Or... lets have it this way. My back-end is sql server. I want to find the columns, their datatype, fieldlength(like sp_help) for a given table. If somebody could give me a solution without using any "sys" tables, I'd appreciate that. If you find that the answer for this question requires more points, kindly let me know.

Thanks.
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LVL 44

Expert Comment

by:bruintje
ID: 7118980
Hi Shivshankar, i've no idea

maybe asking for deletion of this question in customer support and asking this question again in VB would give you some more chance of solving it?

:O)Bruintje
0
 
LVL 1

Author Comment

by:Shivshankar
ID: 7119691
bruintje, I do not get this problem when doing the same stuff in VB. It works!!.

It happens only in Excel or Word Macros :-(
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LVL 44

Accepted Solution

by:
bruintje earned 50 total points
ID: 7119733
what about using ado?

place a reference to the ms activex data object into the references list

Dim Con1 As New ADODB.Connection
Dim Cmd1 As New ADODB.Command
Dim RS As New ADODB.Recordset

Con1.Open "DSN=MyDSN;UID=User;PWD=Pwd;"
Cmd1.ActiveConnection = Con1
Cmd1.CommandText = "MyQuery"
RS.CacheSize = 200
RS.Open Cmd1
0
 
LVL 1

Author Comment

by:Shivshankar
ID: 7181780
bruintje,

Sorry for the delay in response. It too did not work. I'm going to forget this problem. Anyway, thanks for all your efforts. I'd like to give you an "A" for that.

Thanks again.
0
 
LVL 44

Expert Comment

by:bruintje
ID: 7183191
well thanks sorry to hear it didn't work, but i still wonder why it does work in VB but not in VBA
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