Some versions of the CredSSP protocol are vulnerable to an encryption oracle attack against the client. This policy controls compatibility with vulnerable clients and servers. This policy allows you to set the level of protection that you want for the encryption oracle vulnerability.
Our first step is to get the Oracle 19c software for Windows from the official Oracle download page. On this page you will find many packages. In this guide, we will focus on the Oracle Database 19c (19.3) for Microsoft Windows x64 (64-bit) package. If you want to access your future Oracle database remotely, you can also download the Oracle Database 19c Client (19.3) for Microsoft Windows x64 (64-bit) or Oracle Database 19c Client (19.3) for Microsoft Windows (32- bit) according to the architecture of the client computer.
By default, python-oracledb connects directly to Oracle Database. This letsit be used when Oracle Client libraries are not available (such Apple M1 orAlpine Linux), or where the client libraries are not easily installable (suchas some cloud environments). Note not all environments are tested.
The python-oracledb attribute Connection.thin can be used to see whatmode a connection is in. In the Thick mode, the functionoracledb.clientversion() can be used to determine which Oracle Clientversion is in use. The attribute Connection.version can be used todetermine which Oracle Database version a connection is accessing. These canthen be used to adjust the application behavior accordingly. Any attempt touse Oracle features that are not supported by a particular mode or clientlibrary/database combination will result in runtime errors.
This will download and install a pre-compiled binary from PyPI if one is available for yourarchitecture. Otherwise, the source will be downloaded, compiled, and theresulting binary installed. Compiling python-oracledb requires thePython.h header file. If you are using the default python package,this file is in the python-devel package or equivalent.
Alternatively, put the files in the network/admin subdirectory of InstantClient, for example in /opt/oracle/instantclient_21_6/network/admin.This is the default Oracle configuration directory for executables linkedwith this Instant Client.
Alternatively, put the files in the network/admin subdirectory of InstantClient, for example in /usr/lib/oracle/21/client64/lib/network/admin.This is the default Oracle configuration directory for executables linkedwith this Instant Client.
Alternatively, put the files in a network\admin subdirectory of InstantClient, for example in C:\oracle\instantclient_19_11\network\admin.This is the default Oracle configuration directory for executables linkedwith this Instant Client.
To use python-oracledb in Thick mode you must calloracledb.init_oracle_client() in your application, seeEnabling python-oracledb Thick mode. Without this, your application will get the errorDPY-3016: python-oracledb thin mode cannot be used because the cryptographypackage is not installed.
On Windows and macOS, pass the lib_dir library directory parameterin your oracledb.init_oracle_client() call. The parametershould be the location of your Oracle Client libraries. Do not passthis parameter on Linux.
On Windows, if you are not using passing a library directory parameterto oracledb.init_oracle_client(), then restart your commandprompt and use set PATH to check if the environment variable has thecorrect Oracle Client listed before any other Oracle directories.
If you get the error DPY-3010: connections to this database serverversion are not supported by python-oracledb in thin mode whenconnecting to Oracle Database 11.2, then you need to enable Thick mode byinstalling Oracle Client libraries and callingoracledb.init_oracle_client() in your code. Alternatively,upgrade your database.
If you get the error DPI-1072: the Oracle Client library version isunsupported, then review the installation requirements. The Thickmode of python-oracledb needs Oracle Client libraries 11.2 or later.Note that version 19 is not supported on Windows 7. Similar steps shownabove for DPI-1047 may help. You may be able to use Thin mode whichcan be done by removing calls oracledb.init_oracle_client() fromyour code.
After the installation and complete setup, you can run the oracle in your company and all of your employees will be accesing it. There are some rules which you can set on all the employees or the clients to which you are offering services. You can design the database in a way that you can limit their access to a certain point so that you are always on the safe side. Also, please make it ensure that you have a proper backup from all the tables and data so that in any emergency conditions you can restore it.
Before creating the DSN make sure the SQL Server Native client component is installed on the machine. You can install the SQL Server native client either from the SQL Server media or by downloading it from =16978.
The Oracle(tm) lcient and networking components were not found. These components are supplied by oracle corporation and are part of the Oracle Version 7.3 (or greater) client software installation. You will be unable to use this driver until these components have been installed. 2b1af7f3a8