write/read column to existing table for MS SQL use Python pyodbc

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Python pyodbc write/read column to update existing table for MS SQL

do it fast for millions rows

just create synthetic table

existing table : 2 millions rows and 2 columns

update table with 2 millions rows and 3 columns ( format : string , int, float)

Given MS SQL server

1

Data in numpy array format : string and int and float

Write python code for fast writing column/ columns to existing table ( new column or replacing existing column )

Write python code for fast reading column/columns from existing table to numpy array

2

Data in pandas array format : string and int and float

Write python code for fast writing column/ columns to existing table ( new column or replacing existing column )

Write python code for fast reading column/columns from existing table to pandas

for example for pandas

original_data = [ [90, 'qwerewr'], [78, 'adrawer'], [65, 'faweefweq'] , [34, 'qwerweq'] ]

df_original_data = [login to view URL] ( original_data , columns = ["C1", "C2"] )

# upload orginal data to SQL talbe T1

input_data = [ [ 1,0.4,'abc' ] , [ 2, 0.9, 'dfg' ] , [3, 23.6, 'sdfgdsfgsdrfstrh'] , [2, 67.89, 'fsdfsdfg'] ]

# add columns to SQL table T1

df_add_data = [login to view URL] ( input_data , columns = ["C3", "C4", 'C5'] )

Do in one day

Python SQL Bureau Windows

Nº du projet : #35782701

À propos du projet

4 propositions Projet à distance Actif il y a un an

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HelmiDaqdouqi

Hi, I'm a python developper with good experince in SQL, I believe can help you with this task. would you share more information over chat?

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4 freelances font une offre moyenne de 23 $ pour ce travail

topgradeclubltd

Hi, Greetings and hoping you are doing well, i welcome you to my profile where quality and client satisfaction is the Priority. I am Expert Dominic and i hope to cooperate with you on your project . CERTIFIED EXPERT I Plus

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nartsaturyan

Hello I am Python Script expert. I have just checked your proposal carefully. I have strong experience about MYSQL. I can complete your app perfectly. I will start work immediately and deliver the best result. You wi Plus

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