Re: BACK: Inserting a variable into cur.execute statement
От | Daniele Varrazzo |
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Тема | Re: BACK: Inserting a variable into cur.execute statement |
Дата | |
Msg-id | CA+mi_8Z3ZdfA5h53DE5vkY5Xp8xNt_PBtmgHt89mgQnaZmPpzA@mail.gmail.com обсуждение исходный текст |
Ответ на | BACK: Inserting a variable into cur.execute statement (Hagen Finley <hagen@datasundae.com>) |
Ответы |
Re: BACK: Inserting a variable into cur.execute statement
(Hagen Finley <hagen@datasundae.com>)
|
Список | psycopg |
> cur.execute("SELECT COALESCE(SUM(revusd),0) FROM sfdc where stage LIKE 'Win%' AND saccount = %s", (account,)) You have to escape the percent in the like as %%. -- Daniele On Sun, 20 Dec 2020 at 23:13, Hagen Finley <hagen@datasundae.com> wrote: > > Hello, > > I finally got around to trying to implement this code and I am running into an "IndexError: tuple index out of range" problem. > > I am running a function with parameters from a list: > > def def_acct_analysis(sht,acct): > print(param[par][0]) > print(param[par][1]) > sheet = "sheet"+str(sht) > print(sheet) > account = acct > print(account) > > par = 0 > param = [(1,'ACCT0'),(2,'ACCT1'),(3,'ACCT2'),] > > for p in param: > def_acct_analysis(param[par][0], param[par][1]) > > par += 1 > > #Print statements above output: > > 1 > ACCT0 > sheet1 > ACCT0 > > I want to insert the account name 'ACCT0' into my cur.execute but I get an error with this code: > > cur.execute("SELECT COALESCE(SUM(revusd),0) FROM sfdc where stage LIKE 'Win%' AND saccount = %s", (account,)) > wind1 = cur.fetchone() > conn.commit() > > Traceback (most recent call last): > File "/home/datasundae/PycharmProjects/Registration_Reports/sfdc_Account_Tab_Analysis_Function.py", line 333, in <module> > def_acct_analysis(param[par][0], param[par][1]) > File "/home/datasundae/PycharmProjects/Registration_Reports/sfdc_Account_Tab_Analysis_Function.py", line 96, in def_acct_analysis > cur.execute("SELECT COALESCE(SUM(revusd),0) FROM sfdc where stage LIKE 'Win%' AND saccount = %s", (account,)) > IndexError: tuple index out of range > > I've returned to the psycopg docs but I don't see my error. Can someone else see it? > > Best, > > Hagen > > On 12/7/20 3:31 PM, Adrian Klaver wrote: > > On 12/7/20 2:26 PM, hagen@datasundae.com wrote: > > So if I understand this correctly my new cur.execute would read: > > account = 'JPMC' > > cur.execute("SELECT SUM(revusd) FROM sfdc where saccount = %s AND stage LIKE 'Commit%';",(account )) > > > Since you are using a tuple this (account ) would need to be (account,) per the docs at link previously posted: > > "For positional variables binding, the second argument must always be a sequence, even if it contains a single variable(remember that Python requires a comma to create a single element tuple):" > > > > > and that would translate to > > cur.execute("SELECT SUM(revusd) FROM sfdc where saccount = 'JPMC' AND stage LIKE 'Commit%';") > > is that right? > > > > Not sure what below is supposed to be about? > > > Note You can use a Python list as the argument of the IN operator using the PostgreSQL ANY operator. > ids = [10, 20, 30] > cur.execute("SELECT * FROM data WHERE id = ANY(%s);", (ids,)) > Furthermore ANY can also work with empty lists, whereas IN () is a SQL syntax error. > > -----Original Message----- > From: Adrian Klaver <adrian.klaver@aklaver.com> > Sent: Monday, December 7, 2020 3:04 PM > To: hagen@datasundae.com; psycopg@lists.postgresql.org; psycopg@postgresql.org > Subject: Re: Inserting variable into > > On 12/7/20 2:02 PM, hagen@datasundae.com wrote: > > Hello, > > I'd like to use a variable for 'Big Company' (e.g. account) or where = statements generally in my cur.execute statements: > > cur.execute("SELECT SUM(revusd) FROM sfdc where saccount = 'Big Company' AND stage LIKE 'Commit%';") > commitd1 = cur.fetchone() > conn.commit() > > but I don't know the proper syntax with the cur.execute statement to use a variable. > > > https://www.psycopg.org/docs/usage.html#passing-parameters-to-sql-queries > > > I imagine others do - thanks! > > Best, > > Hagen > > > > > > >