teradata python

Connect to Teradata database through Python

7,238 views 3 comments about 2 years ago Raymond Tang

Teradata published an official Python module which can be used in DevOps projects. More details can be found at the following GitHub site: https://github.com/Teradata/PyTd

Install Teradata module

If pip is installed, you can directly install this module through the following command:

pip install Teradata

If not, you can download the package in the following URL:

https://pypi.python.org/pypi/teradata

After downloading, unzip the package and then use command prompt to navigate to the directory that contains setup.py file and then run the following command to install:

python setup.py install

Sample Code

"""Test teradata driver"""

import teradata

import sys

udaExec = teradata.UdaExec(

appName="HelloWorld", version="1.0", logConsole=False)

session = udaExec.connect(method="odbc", dsn="td16vm",

username="dbc", password="dbc", autocommit=True,

transactionMode="Teradata")

for row in session.execute('select getqueryband();'):

print(row)

for row in session.execute('select top 10 tablename, tablekind from dbc.tables;'):

print(row)

session.close()

input('Type <Enter> to exit...')

Details about the sample code

When connecting to Teradata, the following parameters can be configured:

https://developer.teradata.com/tools/reference/teradata-python-module#ConnectParametrs

In the sample code, transaction mode is set as Teradata; auto commit is set as True (transactions will be committed automatically); connecting method is ODBC (the other options is REST), DSN is using td16vm which was setup using the following parameters in my computer:

image

image

Setup your own Teradata virtual machine

If you have no Teradata instance, you can setup one following this post:

Install Teradata Express 15.0.0.8 by Using VMware Player 6.0 in Windows

Sample code result

The following screenshot shows the running result in my IDE (Visual Studio Code):

image

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Comments (3)

Raym*** about 6 months ago

Hi, is your issue resolved?  If not, please paste your detailed error messages here. 

U-zq6z*** about 6 months ago

thx a lot for this tutorial. But I have a problem to ensure the connection of python (installed into windows) to Teradata (installed into VMWare in the same computer).

What shoul I do?

Raym*** about 6 months ago

Hi,

Did you setup the ODBC data source successfully?

If you are encountering connection issues from your windows host to the VM, you can check my following post to ensure the connection is well established:

Connect to Teradata Virtual Machine Guest from Windows Host

U-zq6z*** about 6 months ago

thx a lot for this tutorial. But I have a problem to ensure the connection of python (installed into windows) to Teradata (installed into VMWare in the same computer).

What shoul I do?

U-zq6z*** about 6 months ago

thx a lot for this tutorial. But I have a problem to ensure the connection of python (installed into windows) to Teradata (installed into VMWare in the same computer).

What shoul I do?