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How to get tables and index information from an Odbc provider
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Tony
I need to retrieve schema information from an Odbc provider - basically I
need to know which tables are available and what the indexes are on those
tables.

I need a method that works across SQL Server, Oracle, Text, etc.

I'm converting C++ code that uses the native Odbc libraries but I can't
figure out how to do the same thing via .NET's Odbc driver.

The only thing I can think of to do at this point it to introp to a C++ DLL
and have it do it for me, but that seems a bit hokey.

Tony
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Paul Clement
On Thu, 15 Apr 2004 22:54:22 -0500, "Tony" <Click here to reveal e-mail address> wrote:

¤ I need to retrieve schema information from an Odbc provider - basically I
¤ need to know which tables are available and what the indexes are on those
¤ tables.
¤
¤ I need a method that works across SQL Server, Oracle, Text, etc.
¤
¤ I'm converting C++ code that uses the native Odbc libraries but I can't
¤ figure out how to do the same thing via .NET's Odbc driver.
¤
¤ The only thing I can think of to do at this point it to introp to a C++ DLL
¤ and have it do it for me, but that seems a bit hokey.

Unfortunately the ODBC .NET data provider does not support retrieving database schema natively.

The options are to use the OLEDB .NET data provider (GetOleDbSchemaTable) with an OLEDB provider or
COM interop with either ADO (OpenSchema) or ADOX (Microsoft ADO Ext. 2.x for DDL and Security).

Paul ~~~ Click here to reveal e-mail address
Microsoft MVP (Visual Basic)
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Tony
Bummer, that is not an option, as I just have to use whatever existing ODBC
DSN the client specifies.
I guess I'm going to have to write a C++ DLL and interop it to get the
needed information.

Tony

"Paul Clement" <Click here to reveal e-mail address> wrote in message
news:Click here to reveal e-mail address...
> On Thu, 15 Apr 2004 22:54:22 -0500, "Tony" <Click here to reveal e-mail address>
wrote:
[Original message clipped]
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Paul Clement
On Sat, 17 Apr 2004 11:07:23 -0500, "Tony" <Click here to reveal e-mail address> wrote:

¤ Bummer, that is not an option, as I just have to use whatever existing ODBC
¤ DSN the client specifies.
¤ I guess I'm going to have to write a C++ DLL and interop it to get the
¤ needed information.
¤

Have you looked at using the .NET Managed Extensions for C++?

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmxspec/html/vcManExMigrationGuidePart1_Start.asp

Paul ~~~ Click here to reveal e-mail address
Microsoft MVP (Visual Basic)
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