EDatabaseError No value for parameter 'myfield'

Discussion of open issues, suggestions and bugs regarding usage of dbExpress drivers for SQL Server in Delphi and C++Builder
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dbxsda445std
Posts: 1
Joined: Wed 30 Sep 2009 08:49

EDatabaseError No value for parameter 'myfield'

Post by dbxsda445std » Wed 30 Sep 2009 13:21

I have a database with a blob field that can accept NULL values. When I try to put a NULL in this field with ParamByName("myfield")->Clear() in C++ I receive an error EDatabaseError 'No value for parameter 'myfield''. With a field that is not a blob it works OK. Can anybody help me.

Dimon
Devart Team
Posts: 2910
Joined: Mon 05 Mar 2007 16:32

Post by Dimon » Fri 02 Oct 2009 07:25

I can not reproduce the problem.
Please send me a complete small sample to dmitryg*devart*com to demonstrate it, including a script to create and fill table.

Also supply me the following information:
- the exact version of DbxSda;
- the exact version of your IDE;
- the exact version of SQL server.

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