Good Morning.

How do I know the structure of a blob field? I don't know the inner structure of the database since it was developed some time ago. Knowing the structure of the blob field, how do I read /write it from c# or visual basic?

Thanks in advance!

Hello

A BLOB field doesn't have a structure, its a binary field, it can contain raw binary data, whatever it is.
To see and edit the structure of the database, you may use DbSys - the "Database System Utility" application.
Its a free utility that you can download from Elevate's website .

Fernando Dias
[Team Elevate]

<< How do I know the structure of a blob field? I don't know the inner
structure of the database since it was developed some time ago. Knowing the
structure of the blob field, how do I read /write it from c# or visual
basic? >>

You deal with BLOB fields in C#/VB.NET in the same way that you deal with
any BLOB field in any other database, via the ODBC.NET data provider along
with the DBISAM ODBC Driver:

http://www.elevatesoft.com/download?action=info&category=dbisam&type=dbisamodbctrial&majorversion=4&version=4.30

and by using a byte array:

http://support.microsoft.com/kb/309158

Just replace all of the Sql* objects in the Microsoft example with Odbc*
objects.  Also, the connection string will be slightly different for the
DBISAM ODBC Driver, and you can find the connection string attributes here:

http://www.elevatesoft.com/manual?action=viewtopic&id=dbisam4odbc&topic=Connection_Strings

--
Tim Young
Elevate Software
www.elevatesoft.com