Connect to MSSQL using the Microsoft ODBC Driver on Linux

[C code sample] (sample_c_linux.c) that runs on Linux. The sample connects to MSSQL (SQL Server, Azure SQL DB, Azure SQL DW) using the Microsoft ODBC Driver for Linux.

Prerequisites

Open your terminal and install the Microsoft ODBC Driver on your machine

Install the ODBC Driver for Linux on Ubuntu 15.10:

sudo su
sudo sh -c 'echo "deb [arch=amd64] https://apt-mo.trafficmanager.net/repos/mssql-ubuntu-preview/ wily main" > /etc/apt/sources.list.d/mssqlpreview.list'
sudo apt-key adv --keyserver apt-mo.trafficmanager.net --recv-keys 417A0893
sudo apt-get update
sudo apt-get install msodbcsql
sudo apt-get install unixodbc-dev-utf16 (this step is optional but recommended)

Install the ODBC Driver for Linux on Ubuntu 16.04

sudo su
sudo sh -c 'echo "deb [arch=amd64] https://apt-mo.trafficmanager.net/repos/mssql-ubuntu-preview/ xenial main" > /etc/apt/sources.list.d/mssqlpreview.list'
sudo apt-key adv --keyserver apt-mo.trafficmanager.net --recv-keys 417A0893
sudo apt-get update
sudo apt-get install msodbcsql
sudo apt-get install unixodbc-dev-utf16 (this step is optional but recommended)

Install the ODBC Driver for Linux on RedHat 6

sudo su
yum-config-manager --add-repo https://apt-mo.trafficmanager.net/yumrepos/mssql-rhel6-preview/
yum-config-manager --enable mssql-rhel6-preview
wget "http://aka.ms/msodbcrhelpublickey/dpgswdist.v1.asc"
rpm --import dpgswdist.v1.asc
yum remove unixodbc (to avoid conflicts during installation)
yum update
yum install msodbcsql
yum install unixODBC-utf16-devel (this step is optional but recommended)

Install the ODBC Driver for Linux on RedHat 7

sudo su
yum-config-manager --add-repo https://apt-mo.trafficmanager.net/yumrepos/mssql-rhel7-preview/
yum-config-manager --enable mssql-rhel7-preview
wget "http://aka.ms/msodbcrhelpublickey/dpgswdist.v1.asc"
rpm --import dpgswdist.v1.asc
yum remove unixodbc (to avoid conflicts during installation)
yum update
yum install msodbcsql
yum install unixODBC-utf16-devel (this step is optional but recommended)

After your machine is configured with the ODBC Driver change the credentials in the C sample, compile it and then run it:

gcc sample_c_linux.c -o sample_c_linux -lodbc -w
./sample_c_linux