Install cx_Oracle on Windows

• Install Cx_oracle Windows
• Oracle Instant Client

• Part 2: Install cxOracle (Python’s Driver) Next you will need to install a binary of the cxOracle Python driver. This the Python side of things and interfaces Python to the actual Oracle driver (that is installed in Step 3). Issue the below command to the command line.
• A step by step example is given to download and install cxOracle for Python on Windows. Versions of software used Python 3.7, cxOracle 6.4, Windows 10 and Oracle 11g.
• May 22, 2019  Hi, I am trying to fetch data from oracle database using cxOracle and pandas. Windows 10, oracle client installed how do I provide arraysize.

Follow these steps: Download the appropriate cxOracle Windows Installer, which are based on the Oracle version, Python version. Copy the installer to the CA Strong Authentication or Risk Authentication server. Run the installer and follow the prompts. If the following error is displayed.

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Install Cx_oracle Windows

These installation instructions assume that you are on 64-bit Windows and have a Windows x64 Oracle 11gR2 database running on your machine. The Oracle database can be on any edition of Oracle (Express, Standard, Enterprise). If you are running a Windows x32 version of the Oracle database, but your machine is on 64-bits, you should first install Windows x64 of Oracle before proceeding with this tutorial.
Note that Oracle Express 11gR2 for Windows x64 can be downloaded from http://www.oracle.com/technetwork/database/database-technologies/express-edition/downloads/index.html

Step 1-download and install Python for 64-bit Windows
-go to URL: https://www.python.org/downloads/windows/
-scoll down the list until you see Python 2.7.1 - 2010-11-27
-download Windows x86-64 MSI installer (filename: python-2.7.1.amd64.msi)
-go through the installer by accepting all the defaults. The install directory will be C:Python
-once the installation is complete, add the following locations to the windows PATH variable: C:Python and C:PythonLibsite-packages
-open a command window and launch the python interpreter by running 'python' on the command-line prompt
you should get:
Python 3.4.2 (v3.4.2:ab2c023a9432, Oct 6 2014, 22:16:31) [MSC v.1600 64 bit (AMD64)] on win32
Type 'help', 'copyright', 'credits' or 'license' for more information.
>>>

Step 2-download and install the Oracle driver for Python called cx_Oracle
-go to URL: https://pypi.python.org/pypi/cx_Oracle/5.1.3
-select and download cx_Oracle-5.1.3-11g.win-amd64-py2.7.exe (md5) (filename: cx_Oracle-5.1.3-11g.win-amd64-py2.7.exe)
-run through the cx_Oracle installer by accepting all the defaults. The installer should detect the existing Python installation under C:Python
-open a new command window and bring up the python interpreter as before by running 'python'
-run: import cx_Oracle
you should get:

C:Usersshir7084>python
Python 2.7.1 (r271:86832, Nov 27 2010, 17:19:03) [MSC v.1500 64 bit (AMD64)] on win32
Type 'help', 'copyright', 'credits' or 'license' for more information.
>>>
>>> import cx_Oracle
>>> con = cx_Oracle.connect('ap/ap@127.0.0.1/xe')
>>> print con.version
11.2.0.2
>>> con.close()

Oracle Instant Client

Note: if you get the output 11.2.0.2 or 11.2.0.3 or 11.2.0.4 from the above test, then you are good. If you get an error, please post the entire output on Piazza including the error.