SQL Server 2022 : Use with Python2023/11/24 |
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This is an example to use SQL Server with Python.
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| [1] | This is based on the environment Python 3 has been installed. Additionally, Install Python DB API for ODBC. |
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root@dlp:~# apt -y install python3-pyodbc
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| [2] | Create a sample User and Database for Test. |
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root@dlp:~# sqlcmd -S localhost -U SA Password: # create login user 1> create login ubuntu with PASSWORD= N'P@ssw0rd01'; 2> go # create [SampleDB3] 1> create database SampleDB3; 2> go 1> use SampleDB3; 2> go Changed database context to 'SampleDB'. # create DB user 1> create user ubuntu for login ubuntu; 2> go # assign DB owner role to [ubuntu] 1> exec sp_addrolemember 'db_owner', 'ubuntu'; 2> go # create [SampleTable] 1> create table SampleTable ( 2> ID int identity(1,1) not null primary key, First_Name NVARCHAR(50), Last_Name NVARCHAR(50) ); 3> insert into SampleTable ( 4> First_Name, Last_Name) values (N'Ubuntu', N'Linux'), (N'Debian', N'Linux'), (N'RedHat', N'Linux' ); 5> go |
| [3] | This is a basic usage example of SQL Server on Python. It uses database and connection user that were created above. |
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# confirm ODBC Driver version ubuntu@dlp:~$ odbcinst -j unixODBC 2.3.9 DRIVERS............: /etc/odbcinst.ini SYSTEM DATA SOURCES: /etc/odbc.ini FILE DATA SOURCES..: /etc/ODBCDataSources USER DATA SOURCES..: /home/ubuntu/.odbc.ini SQLULEN Size.......: 8 SQLLEN Size........: 8 SQLSETPOSIROW Size.: 8ubuntu@dlp:~$ cat /etc/odbcinst.ini [ODBC Driver 17 for SQL Server] Description=Microsoft ODBC Driver 17 for SQL Server Driver=/opt/microsoft/msodbcsql17/lib64/libmsodbcsql-17.10.so.5.1 UsageCount=1
ubuntu@dlp:~$
vi use_mssql.py
import pyodbc
server = '127.0.0.1'
database = 'SampleDB3'
username = 'ubuntu'
password = 'P@ssw0rd01'
cnxn = pyodbc.connect('DRIVER={ODBC Driver 17 for SQL Server}; \
SERVER='+server+'; PORT=1443; DATABASE='+database+'; UID='+username+'; PWD='+ password)
cursor = cnxn.cursor()
# Select data from SampleTable
print ('\nReading data from SampleTable')
tsql = "select * from SampleTable;"
with cursor.execute(tsql):
row = cursor.fetchone()
while row:
print (str(row[0]) + " " + str(row[1]) + " " + str(row[2]))
row = cursor.fetchone()
# Insert data into SampleTable
print ('\nInserting a new row into SampleTable')
tsql = "insert into SampleTable (First_Name, Last_Name) values (?,?);"
with cursor.execute(tsql,'Windows','Microsoft'):
print ('- Successfuly Inserted!')
# Update data in SampleTable
print ('\nUpdating Last_Name for Redhat')
tsql = "update SampleTable set Last_Name = ? where First_Name = ?"
with cursor.execute(tsql,'Plow','Redhat'):
print ('- Successfuly Updated!')
tsql = "select * from SampleTable;"
with cursor.execute(tsql):
row = cursor.fetchone()
while row:
print (str(row[0]) + " " + str(row[1]) + " " + str(row[2]))
row = cursor.fetchone()
# Delete data in SampleTable
print ('\nDeleting user Debian')
tsql = "delete from SampleTable where First_Name = ?"
with cursor.execute(tsql,'Debian'):
print ('- Successfuly Deleted!')
python3 use_mssql.py Reading data from SampleTable 1 Ubuntu Linux 2 Debian Linux 3 RedHat Linux Inserting a new row into SampleTable - Successfuly Inserted! Updating Last_Name for Redhat - Successfuly Updated! 1 Ubuntu Linux 2 Debian Linux 3 RedHat Plow 4 Windows Microsoft Deleting user Debian - Successfuly Deleted! |
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