HANA SDA configuration for MSSQL

SAP HANA smart data access allows you to access remote data as if the data was stored in local tables in SAP HANA, without copying the data into SAP HANA.

In this blog, we will show you how to set up SDA for SQL SERVER 13. The steps are also same for SQL SERVER 12.

1. Download and install Microsoft ODBC driver
   

   Follow the introduction as the following Microsoft official link(Choose the commands according to your OS):
   https://docs.microsoft.com/en-gb/sql/connect/odbc/linux-mac/installing-the-microsoft-odbc-driver-for-sql-server?view=sql-server-2017#microsoft-odbc-driver-131-for-sql-serverUsing the “root” user, run the following red commands to install the Microsoft ODBC driver in your HANA server if your HANA OS is SUSE Linux Enterprise Server 12

   sudo su 
   zypper ar https://packages.microsoft.com/config/sles/12/prod.repo
   exit 
   sudo ACCEPT_EULA=Y zypper install msodbcsql 
   # optional: for bcp and sqlcmd 
   sudo ACCEPT_EULA=Y zypper install mssql-tools 
   echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bash_profile 
   echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bashrc source ~/.bashrc 
   # optional: for unixODBC development headers 
   sudo zypper install unixODBC-devel

   

   After the installation, there will be /opt/microsoft/msodbcsql/lib64 generated. And the driver libmsodbcsql-13.1.so.9.2 should be in this dirctiory.
   

2. Install and test using unixODBC to check if the ODBC connection can be set well.

   Actually during setting up SDA, we can skip this step in configuring the SDA to MSSQL. But we strongly recommend you installing the unixODBC to test if the ODBC connection can be set correctly. Only when the unixODBC test works, and then the SDA will work.

   a) Go to unixODBC offical page  http://www.unixodbc.org/ -> Download, follow the steps in the page to install the unixODBC.
   Once the unixODBC is installed, check if the drivers installed properly.

   >> isql --version

   The output should be the version of unixODBC “unixODBC 2.3.1”

   b) Using command “odbcinst -j” to know where the odbc.ini is located, and then we need to create the DSN in the odbc.ini file to set up the odbc connection.

   <hostname>:~ # odbcinst -j
   unixODBC 2.3.1
   DRIVERS............: /etc/unixODBC/odbcinst.ini
   SYSTEM DATA SOURCES: /etc/unixODBC/odbc.ini
   FILE DATA SOURCES..: /etc/unixODBC/ODBCDataSources
   USER DATA SOURCES..: /root/.odbc.ini
   SQLULEN Size.......: 8
   SQLLEN Size........: 8
   SQLSETPOSIROW Size.: 8

   Configure the odbc.ini file “/etc/unixODBC/odbc.ini” :
   The format is like below:

   [<DATABASE_NAME>]
   servernode = <client_ip_address>:<sqlserver_port>

   In my example, the DSN is like the following:

   [MSSQL]
   Driver= /opt/microsoft/msodbcsql/lib64/libmsodbcsql-13.1.so.9.2
   Server=<SQLSERVER_IP_ADDRESS>,1433

   The port number got from “Sql Server Configuration Manager” -> Protocols for MSSQLSERVER -> TCP/IP -> TCP Port :
   

   c) Test the ODBC connection by the following command:

   isql -v <DATABASE_NAME> <user> <password>

   

   Once this has been established successfully, then we can configure the SDA much quickly.

3. Set up SQL Server ODBC Driver

   a) Change to <sid>adm $HOME directory
   In /usr/sap/<SID>/home create file “.customer.sh” by <sid>adm userAdd the following to the file “.customer.sh”

   export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/microsoft/msodbcsql/lib64
   export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib64

   Then source file “.customer.sh” .

   And check if the path has been added to the enviroment LD_LIBRARY_PATH

   echo $LD_LIBRARY_PATH

   Check if “/opt/microsoft/msodbcsql/lib64” and “/usr/local/lib64” has been added to the environment LD_LIBRARY_PATH . If not, please restart your HANA instance and check it again.

4. Create a DSN Entry
   Change to <sid>adm $HOME directory
   In /usr/sap/<SID>/home , create “.odbc.ini” file, the same as we create in /etc/unixODBC/odbc.ini file.[MSSQL]
   Driver= /opt/microsoft/msodbcsql/lib64/libmsodbcsql-13.1.so.9.2
   Server=<SQLSERVER_IP_ADDRESS>,1433

   And restart HANA instance to apply the changes to the .INI file.

5. HANA studio -> Provisioning -> Remote Sources -> New remote source
   
6. Save the configuration, then the SDA remote connection is configured successfully.
   And then you could add the virtual table to one schema of current HANA DB.

For more other detailed information about SDA, you could refer to the latest HANA Admin Guide.