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Has anyone seen this problem? We have a VB application that communicates with the database using ADO and ODBC. Original development was done against MS SQL Server, but we have recently implemented it against DB2/400, and it worked fine. On one file there is a long field which was defined as a VARCHAR(2000). Requirements changed, and it will now have to hold considerably more data (an XML message, not that that makes any difference). Initially we set it to a VARCHAR(10000). This works fine on SQL Server, but does not against DB2/400. We have tried various lengths of VARCHARs and CLOBs. For either data type there seems to be a length above which the data is not returned correctly. Unfortunately, this is the hardest type of problem to diagnose, as it is intermittent. There appear to be two distinct classes of error: if we use a CLOB with the default size (which I believe is 1MB), the application gets null returned for that field, despite the fact that there is data in it (indeed, it is defined as NOT NULL). If we use a shorter CLOB or VARCHAR, the application will successfully read several records, then at some arbitrary time it will fail; the debugger shows an error in a Microsoft DLL: this has been MSADO15.DLL and MSDART.DLL. We have opened a PMR with IBM, and they are looking into it, but any supporting information from you guys would be helpful, as would any solutions or workarounds you might have seen. The AS/400 is at V5R1, and Client Access Express is at the service pack that came out on the 15th of February. I am waiting for a license code from HiT Software, to try an evaluation copy of their driver, but we would prefer to stick with the IBM one rather than pay for an alternative. Cheers, Martin. -- Martin McCallion Senior Technical Consultant Work: martin.mccallion@misys.com Home: martin.mccallion@ukonline.co.uk Misys International Banking Systems 1 St George's Road, London, SW19 4DR, UK T +44 (0)20 8486 1951 F +44 (0) 20 8947 3373 www.misys.com This email message is intended for the named recipient only. It may be privileged and/or confidential. If you are not the intended named recipient of this email then you should not copy it or use it for any purpose, nor disclose its contents to any other person. You should contact Misys International Banking Systems as shown below so that we can take appropriate action at no cost to yourself. Misys International Banking Systems Ltd,1 St George's Road, London, SW19 4DR, UK. Email: ibs.postmaster@misys.com. Tel: +44 (0) 20 8879 1188 Fax: +44 (0) 20 8947 3373 Misys International Banking Systems Ltd is registered in England and Wales under company no. 971479
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