getting the binary data length from the database using ODBC API

[harish_kolar]

I am using ODBC for the database connectivity in my C++ application.
I am having a binary data in one of my database columns.
To retrive this, i am calling SQLGetdata function.
For this i need to pass a char pointer with suffiecient memory allocated.
But i don't know the binary data length to allocate the memory.
How to get the length of the binary data using ODBC API.
I am not using MFC.

[Sam Hobbs]

Perhaps your binary data is a BLOB. If it is, then search for information about BLOBs.