How to Select BLOB?

Hi!
I'd like to select a BLOB from a table, but i don't know the right call sequence.
Example: SELECT recording from foo WHERE id = :id
Am I right to:
- prepare
- bind id parameter
- execute
the statement? When should the OCILocator be allocated/defined? How do i get the length of the data? How do i read the data to memory (or memmapped file)? sample code?
Many thanks in advance,
Harald

There are some choices in how you do this, and in the order of the steps. Have you seen the sample programs cdemolb.c and cdemolb2.c mentioned here: http://download-east.oracle.com/docs/cd/B19306_01/appdev.102/b14250/ociabdem.htm#i459676
Also this documentation: http://download-east.oracle.com/docs/cd/B19306_01/appdev.102/b14250/oci05bnd.htm#sthref714

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