I tried using the sql_create_N macros, but my compiler crashes with an
"INTERNAL COMPILER ERROR". I'm using VC++ 6.0 sp5. I spent several days
trying to work around that and finally went back to the sql_create_basic_N.
Steve
-----Original Message-----
From: Sinisa Milivojevic [mailto:[EMAIL PROTECTED]]
Sent: Thursday, April 19, 2001 5:35 AM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: Re: sql_create_basic_N questions
Steve Newell writes:
> NOTE: I have cross-posted this to the plusplus mailing list as well.
>
>
> I am using sql_create_basic_N to generate structures that mirror my
database
> tables. The problem I have is that some of the fields in my database are
> "blobs" that need to be escaped before insertion.
>
> Questions:
>
> 1. I am using a string to represent the data in the structure:
>
> sql_create_basic_2(StoryBody, 0, 0,
> INT32, StoryID,
> string, Body); // this is actually a blob
>
> Is there a better data structure for this?
>
> 2. The data that I am trying to store has nulls scattered throughout.
When
> I create the insert string using the following code, it only puts in the
> data up to the first null. That's a side effect of the string, so I have
> tried escaping the string before I create the insert statement. That
> doesn't seem to work either. Apparently, MySql is ignoring the escaped
> characters.
>
>
> StoryBody sb;
>
> sb.StoryID = -1;
> string tmpS(blobSize, blob);
> sb.Body = tmpS;
>
> escape_string(sb.Body);
>
> Query q = m_dbconn->query();
> stringstream strbuf;
>
> try {
> string tmpQS = "INSERT INTO STORYBODY (Body) VALUES('";
>
> strbuf << "INSERT INTO STORYBODY (Body) VALUES(" << quote <<
sb.Body
> << ")";
> q.exec(strbuf.str());
> } catch(BadQuery e) {
> // handle error here
> }
>
> Any help would be greatly appreciated.
>
> Thanks,
>
> Steve
Hi!
No you should use sql_create_3.
Please take a look at custum1.cc and custom3.cc examples.
Regards,
Sinisa
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