ODBC Driver for Azure Table Storage

Build 22.0.8462

Linux DSN Configuration

This section describes how to set up ODBC connectivity and configure DSNs on several Linux distributions: Debian-based systems, like Ubuntu, and Red Hat Linux platforms, like Red Hat Enterprise Linux (RHEL), CentOS, and Fedora.

Minimum Linux Versions

Here are the minimum supported versions for Red Hat-based and Debian-based systems:

OSMin. Version
Ubuntu11.04
Debian7
RHEL6.9
CentOS6.9
Fedora13
SUSE12.1

Installing the Driver Dependencies

Run the following commands as root or with sudo to install the necessary dependencies:

  • Debian/Ubuntu:
    apt-get install libc6 libstdc++6 zlib1g libgcc1
  • RHEL/CentOS/Fedora:
    yum install glibc libstdc++ zlib libgcc

Here are the corresponding libraries required by the driver:

Debian/Ubuntu PackageRHEL/CentOS/Fedora PackageFile
libc6glibclinux-vdso.1
libc6glibclibm.so.6
libc6glibclibrt.so.1
libc6glibclibdl.so.2
libc6glibclibpthread.so.0
libc6glibclibc.so.6
libc6glibcld-linux-x86-64.so.2
libstdc++6libstdc++libstdc++.so.6
zlib1gzliblibz.so.1
libgcc1libgcclibgcc_s.so.1

Installing the Driver

You can use standard package management systems to install the driver.

On Debian-based systems, like Ubuntu, run the following command with root or sudo:

dpkg -i /path/to/driver/setup/AzureTablesODBCDriverforUnix.deb 

On systems that support the RPM package format, run the following command with root or sudo:

rpm -ivh /path/to/driver/AzureTablesODBCDriverforUnix.rpm 

Licensing the Driver

Run the following commands to license the driver. To activate a trial, omit the <key> input.

cd /opt/cdata/cdata-odbc-driver-for-azuretables/bin/
sudo ./install-license.sh <key>

Connecting through the Driver Manager

The driver manager loads the driver and passes function calls from the application to the driver. You need to register the driver with the driver manager and you define DSNs in the driver manager's configuration files.

The driver installation registers the driver with the unixODBC driver manager and creates a system DSN. The unixODBC driver manager can be used from Python and from many other applications. Your application may embed another driver manager.

Creating the DSN

See Using unixODBC to install unixODBC and configure DSNs. See Using the DataDirect Driver Manager to create a DSN to connect to OBIEE, Informatica, and SAS.

Connecting to Azure Table Storage APIs

The driver will connect to the Azure Table Storage account specified by Account. By default, connections to the Azure Table Storage are secured via SSL, though this can be controlled through UseSSL. The authentication method to the Azure Table Storage is determined by the AuthScheme property.

Authenticating to Azure Table Storage

The following mechanisms may be used to authenticate.

Access Key

Set Account to the storage account name and set the AccessKey of the storage account to connect. Follow the steps below to obtain these values:

If using Storage as the Backend (default):

  1. Log into the Azure portal and select Storage Accounts in the services menu on the left.
  2. If you currently do not have any storage accounts, create one by clicking the Add button.
  3. Click the link for the storage account you want to use and select Access Keys under Settings. The Access Keys window contains the storage account name and key (you can use either key1 or key2 to connect) that you will need to use in the driver. These properties map to the Account and AccessKey driver connection properties respectively.

If using CosmosDB as the Backend:

  1. Log into the Azure portal and select Cosmos DB in the services menu on the left.
  2. Click the link for the Cosmos DB account you want to use and select Connection String under Settings. The Connection String window contains the Cosmos DB account name and primary key that you will need to use in the driver. These properties map to the Account and AccessKey driver connection properties respectively.

Shared Access Signature

Set Account to the storage account name and set the SharedAccessSignature to a valid signature of a resource to connect to. The SharedAccessSignature may be generated with a tool such as Azure Storage Explorer.

Typically when SharedAccessSignature is used, the specific table to work with must also be specified via the Tables connection property. If no table is specified, a table listing will be attemped, but may fail due to a lack of permissions.

Set the Driver Encoding

The ODBC drivers need to specify which encoding to use with the ODBC Driver Manager. By default, the CData ODBC Drivers for Unix are configured to use UTF-16 which is compatible with unixODBC, but other Driver Managers may require alternative encoding.

Alternatively, if you are using the ODBC driver from an application that uses the ANSI ODBC API it may be necessary to set the ANSI code page. For example, to import Japanese characters in an ANSI application, you can specify the code page in the config file '/opt/cdata/cdata-odbc-driver-for-azuretables/lib/cdata.odbc.azuretables.ini':

[Driver]
AnsiCodePage = 932

Copyright (c) 2023 CData Software, Inc. - All rights reserved.
Build 22.0.8462