embedded sql error handling

hi,

i've started reading myself into the topic embedded sql and i'm wondering how 
i'am going to catch the errors which might occur at runtime. i have seen some 
constructs like:

C/EXEC SQL WHENEVER SQLERROR GOTO ...
C/END-EXEC

but these things only helps in a non-/free environment with the tag keyword. 
how do i code it without the tag keyword in a /free block. and how do i know 
which error occured (error code and description).

any help or/and links would be nice.

i search the info center and read the topic "embedded sql programming" but 
found nothing there (perhaps i overlooked something)

thanx in advance

mk