CODEWITHSUNDEEP
pythonpython-3.xpandas
Serdia
Serdia

Reputation: 4426

How to pass date parameters to execute sql stored procedure in python pandas

This way works:

import pandas
import pyodbc
import datetime as dt  

server = 'myserver'
db = 'mydb' 
myparams = ['2017-02-01','2017-02-28', None]  # None substitutes NULL in sql

connection_string = pyodbc.connect('DRIVER={SQL Server};server='+server+';DATABASE='+ db+';Trusted_Connection=yes;')
df = pandas.read_sql_query('EXEC PythonTest_Align_RSrptAccountCurrentMunich @EffectiveDateFrom=?,@EffectiveDateTo=?,@ProducerLocationID=?', connection_string, params = myparams)

But this way does not work:

import datetime as dt

today = dt.date.today()
prev_monday = today - dt.timedelta(days=9)
prev_sunday = today - dt.timedelta(days=3)

myparams = [prev_monday,prev_sunday, None]  # None substitutes NULL in sql

connection_string = pyodbc.connect('DRIVER={SQL Server};server='+server+';DATABASE='+ db+';Trusted_Connection=yes;')
df = pandas.read_sql_query('EXEC PythonTest_Align_RSrptAccountCurrentMunich @EffectiveDateFrom=?,@EffectiveDateTo=?,@ProducerLocationID=?', connection_string, params = myparams)

Error message:

    cur.execute(*args)
pandas.io.sql.DatabaseError: Execution failed on sql 'EXEC PythonTest_Align_RSrptAccountCurrentMunich @EffectiveDateFrom=?,@EffectiveDateTo=?,@ProducerLocationID=?': ('HYC00', '[HYC00] [Microsoft][ODBC SQL Server Driver]Optional feature not implemented (0) (SQLBindParameter)')

Is there specific way for passing date parameters in python?

Upvotes: 2

Views: 1678

Answers (1)

Umar.H
Umar.H

Reputation: 23099

my guess here is that SQL can't handle pandas datetime values,

try passing the datetime values into strigns using strftime

import datetime as dt

today = dt.date.today()
prev_monday = (today - dt.timedelta(days=9)).strftime('%Y-%m-%d')
prev_sunday = (today - dt.timedelta(days=3)).strftime('%Y-%m-%d')

myparams = [prev_monday,prev_sunday, None]
print(myparams)
['2019-10-14', '2019-10-20', None]

Upvotes: 1

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