Article View: borland.public.cppbuilder.database.ado
Article #671Parameter not found error
From: Borland Newsgroups
Date: Tue, 14 Feb 2006 21:40
Date: Tue, 14 Feb 2006 21:40
29 lines
1987 bytes
1987 bytes
I have the following code in C++ builder 6:
q->CommandText = "INSERT INTO Locks (LockType, Expiration, Username, Data,
ExclusiveLock) ";
q->CommandText += "VALUES (:LockType, :Expiration, :Username, :Data,
:ExclusiveLock)";
q->Parameters->ParamByName("LockType")->Value = LockText[type];
...
when the third line is executed, I get an error saying that the parameter
"LockType" does not exist. If, however, I combind the first two lines into a
single line...
q->CommandText = "INSERT INTO Locks (LockType, Expiration, Username, Data,
ExclusiveLock) VALUES (:LockType, :Expiration, :Username, :Data,
:ExclusiveLock)";
everything works fine. I have made sure CommandType = cmdText, and even
called Parameters->ParseSQL. I still get the same error. Looking at the
examples in the BCB6 documentation, I think I am doing what they do there,
but there appears to be a problem using the '+=' operator with
CommandText...
Any ideas how I can fix this without having to combine all my long SQL
statements into long C++ lines?
Thanks,
John F. Lund
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