Well, I would have expected ResultProxy.rowcount to do just that
(return the number of rows in the last executed statement) but I just
get 0 from it. Perhaps someone could explain how to use it correctly.
Stephen Emslie
On Thu, Mar 12, 2009 at 5:20 PM, jeff jeffre...@gmail.com wrote:
hi.
database cursors are essentially iterators so a total rowcount, without
fetching all the rows, is not available in a platform-agnostic way.
the usual strategy to find out how many rows of something exist in the DB
is to do SELECT COUNT(*).
Stephen Emslie wrote:
Well, I would have expected
thanks i will use select count (*)
i was making a leap that there would be something in pgdb which allows
a function like:
sql_txt = select * from addresses
cursor.execute(sql_txt)
rows=cursor.fetchall()
rows_returned = cursor_result.rowcount
where the rowcount property contains the number of
If you use
rows = cursor.fetchall()
you have already executed the query and the result is a list of RowProxy's
returned by the query. Count then is simply
count = len(rows)
Otherwise, the count(*) approach is correct.
--
Mike Conley
On Fri, Mar 13, 2009 at 4:42 PM, jeff
thank you that got me where i was trying to get.
originally in the first example i was not adding the fetchall(). len()
and rowcount were not yielding anything in that case. then once
fetchall() was added i used len() as suggested and it worked.
thanks.
On Mar 13, 9:30 pm, Mike Conley
