From: | Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> |
---|---|
To: | hagen(at)datasundae(dot)com, psycopg(at)lists(dot)postgresql(dot)org, psycopg(at)postgresql(dot)org |
Subject: | Re: Inserting variable into |
Date: | 2020-12-07 22:31:23 |
Message-ID: | 63f9baec-b185-3278-e8a7-84692579f9d8@aklaver.com |
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Lists: | psycopg |
On 12/7/20 2:26 PM, hagen(at)datasundae(dot)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(dot)klaver(at)aklaver(dot)com>
> Sent: Monday, December 7, 2020 3:04 PM
> To: hagen(at)datasundae(dot)com; psycopg(at)lists(dot)postgresql(dot)org; psycopg(at)postgresql(dot)org
> Subject: Re: Inserting variable into
>
> On 12/7/20 2:02 PM, hagen(at)datasundae(dot)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
>>
>>
>>
>
>
--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com
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