Solved

Detecting underlying database type under ODBC

Posted on 2000-04-04
3
717 Views
Last Modified: 2008-02-20
Because of a difference in the way dates are presented for comparison in WHERE expressions (see http://www1.experts-exchange.com/Computers/Databases/SQL/Q_10320535.html) , I need to know what type of database is being used for my MFC ODBC app.  I tried using CDatabase::GetConnect() to get the connect string and found FIL=MS Access; when ODBC data source used Access, but no such string was returned under MS SQL Server 7.0.

How can I detect the underlying database type?
0
Comment
Question by:sniles
3 Comments
 
LVL 7

Accepted Solution

by:
twol earned 200 total points
ID: 2687101
Simply by adding a few functions to make generic odbc calls, you should have no problems between these two environments ( I've already done this).

Use the info at this page to see how to make generice odbc SQL statements.

http://support.microsoft.com/support/kb/articles/Q142/9/30.asp
0
 
LVL 4

Expert Comment

by:kpkp
ID: 2687127
If you can get you app to read registry entries at run time, look for a key in
[My Computer\HKEY_CURRENT_USER\Software\ODBC\ODBC.INI\]

There should be keys here for each DSN, look for the key with the same name as the DSN you app is using, the data value for the key is the ODBC driver name.
0
 

Author Comment

by:sniles
ID: 2688354
Thanks.

While this question was open, I found another way to find the info (although I prefer your solution, which makes this info unnecessary):

#include <SQL.H>

char dbms_info[256];
SQLSMALLINT dbms_info_len;

int rc =  SQLGetInfo(                        m_database.m_hdbc,
      SQL_DBMS_NAME,
      (SQLPOINTER) dbms_info,            (SQLSMALLINT) sizeof(dbms_info),
      (SQLSMALLINT *) &dbms_info_len);

When this call returns, dbms_info contains "ACCESS" or "Microsoft SQL Server" (haven't tested other values).
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

Entity Framework is a powerful tool to help you interact with the DataBase but still doesn't help much when we have a Stored Procedure that returns more than one resultset. The solution takes some of out-of-the-box thinking; read on!
This article explains all about SQL Server Piecemeal Restore with examples in step by step manner.
Video by: Steve
Using examples as well as descriptions, step through each of the common simple join types, explaining differences in syntax, differences in expected outputs and showing how the queries run along with the actual outputs based upon a simple set of dem…
Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…

733 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