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detecting NULL from libpq... - Mailing list pgsql-general

From dave madden
Subject detecting NULL from libpq...
Date
Msg-id 199806192228.PAA27643@paradigm.webvision.com
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Responses Re: [GENERAL] detecting NULL from libpq...  (Bruce Momjian <maillist@candle.pha.pa.us>)
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Hi.  I'm wondering if it's possible to tell whether a field returned
by PQgetvalue() is NULL?  Can one distinguish between a varchar field
that contains a string of zero length and a varchar field that is
NULL?  (And if so, how? :-)

regards,
d.

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