On 12/5/20 7:57 AM, Hagen Finley wrote:
Hello,
I was thinking ‘finally, something I know how to do’ but alas simple
sum(revenue) where select statements in psycopg2 have proven to be more
complex than I imagined.
First, there’s the Decimal tuple parsing which I can do (albeit somewhat
unnaturally) (Decimal('450992.10'),)
cur.execute("SELECT SUM(revusd) FROM sfdc where saccount = 'Big Company' AND stage
LIKE 'Commit%';")
commitd1 = cur.fetchone()
conn.commit()
commitd2 = commitd1[0]
if type(commitd2)is not None:commit =int(commitd2)
else:
commit =0
450992.10
<class 'int'>
If there is a better way to get to int I'd be all ears.
Second, there’s the NoneType (None,) result from queries with no values.
cur.execute("SELECT SUM(revusd) FROM sfdc where saccount = 'Big Company' AND stage
LIKE 'Win%';")
wind1 = cur.fetchone()
conn.commit()
wind2 = wind1[0]
if type(wind2)is int:win =int(wind2)
else:
win =0
My goal is to return 0.00 when there are no results and an int when
there are results using the same code. Right now my if statements are
different:
if type(commitd2)is not None:
if type(wind2)is int:
Possibly ignoring my fledgling attempts to solve this problem, is there
a simple method by which people convert the:
1. (Decimal('450992.10'),) to a <class 'int'> 450992.10?
2. (None,) to 0.00?
Thanks for your thoughts on this question.
Just do it in the query:
"SELECT COALESCE(SUM(revusd, 0)) FROM sfdc where saccount = 'Big
Company' AND stage LIKE 'Commit%';"
If SUM(revusd) is NULL then COALESCE will substitute 0.
Best,
Hagen Finley
Fort Collins, CO
--
Adrian Klaver
[email protected]
