Re: BACK: Inserting a variable into cur.execute statement

Thank you Daniele,

That did it! Much appreciated.

Best,

Hagen

On 12/20/20 4:33 PM, Daniele Varrazzo wrote:
>> 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
>>
>>
>>
>>
>>
>>
>>