Solved

How to fully access SQL server database with VC++5.0?

Posted on 1998-08-20
1
351 Views
Last Modified: 2010-04-01

I built a SQL server database with MS-SQL 6.5. I want to use MS VC++ 5.0 to access the database, such as, add, retrieve, delete records and etc.

So, after I built the database within MS SQL server "Enterprise Manager", I setup "ODBC database source" within "ODBC(32bit)" in Control Panel. Then, I add a MFC class "Myrecord" based on "CRecordSet".

At first, in my VC++5.0 source code, I use "CRecordSet::Open()" to open the database (No any parameters in "Open()", as the MS example shows). Then, I use "CRecordSet::AddNew()" or "CRecordSet::Edit()"  and "CRecordSet::Update()" to add or modify records in the database. However, right after the program executes "AddNew()" or "Edit()", there is a dialog box poped up: "Recordset is read-only".

So, I can't add or modify records in the database that I built and setup. Is the problem within SQL server database, or within the VC++ problem? From the VC++ help, I know that using "CRecordSet:Open()" (without any parameters) mean that the opened database can be fully accessed. However, why did it show "RecordSet is read-only"?

BTW, when I built my VC++ project with the "File->New" MFC AppWizard (multiple Document), in the step 2 of 6, I choosed "Header files only".

Now, I can only retrieve the records in the database but not add or delete. However, I am eager to fully access the database. Could you please help me figure out the problem?

Thank you very much!

--
Dataxx
 
0
Comment
Question by:dataxx
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 1

Accepted Solution

by:
softev earned 200 total points
ID: 1170785
Dataxx,

Look into creating a CDatabase object and passing into the
constructor of your CRecordSet object during construction time.
You'll be able to set properties on the CDatabase object that
allow for read/write...

Softev

0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Often, when implementing a feature, you won't know how certain events should be handled at the point where they occur and you'd rather defer to the user of your function or class. For example, a XML parser will extract a tag from the source code, wh…
C++ Properties One feature missing from standard C++ that you will find in many other Object Oriented Programming languages is something called a Property (http://www.experts-exchange.com/Programming/Languages/CPP/A_3912-Object-Properties-in-C.ht…
The viewer will learn how to pass data into a function in C++. This is one step further in using functions. Instead of only printing text onto the console, the function will be able to perform calculations with argumentents given by the user.
The viewer will learn additional member functions of the vector class. Specifically, the capacity and swap member functions will be introduced.

630 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question