Subject Firebird API calls
Author gtm2 na interia.pl
Hello,
I have a question about following situation occured in API calls:
after call of isc_create_blob or isc_create_blob2 in
ISC_QUAD is returned a blob ID (for example
gds_quad_high = 0 and gds_quad_low = 11),
thereafter, this value is placed into sqldata of the
corresponding item of XSQLVAR array in XSQLDA structure,
and finally isc_dsql_execute_immediate is called with
the appropriate sql statement (INSERT... or UPDATE...).
When the updated or inserted record is fetched, the blob
field contains not the value obtained from isc_create_blob
call but totaly different (for example gds_quad_high = 128
and gds_quad_low = 10). Could You please explain it for me
if it is an error or an intended manner of API calls, and
if so then why ? It is very important, because since
isc_create_blob returns only a kind of temporary value of
ISC_QUAD ( blob ID ), the newly inserted or updated record
must be fetched immediatelly in order to obtain the correct
value of blob ID that is required in call of isc_open_blob.
Regards
Gregor Markowski

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