Prepare the runtime environment - connecting to the database

In order to connect to IBM^® Netezza^®, you must have the "dbmntz*" driver in FGLDIR/dbdrivers.

The IBM Netezza client software with ODBC driver is required to connect to a server. Check if the ODBC client library (libnzodbc.*) is installed on the machine where the 4gl programs run.

Make sure that the IBM Netezza client environment variables are properly set. Check for example NZ_DIR (the path to the installation directory), NZ_ODBC_INI_PATH (the path to the ODBC data source file), etc. See IBM Netezza documentation for more details.

Verify the environment variable defining the search path for database client shared libraries (libnzodbc.so on UNIX™, ODBC32.DLL on Windows™). On UNIX platforms, the variable is specific to the operating system. For example, on Solaris and Linux™ systems, it is LD_LIBRARY_PATH, on AIX^® it is LIBPATH, or HP/UX it is SHLIB_PATH. On Windows, you define the DLL search path in the PATH environment variable.

Table 1. Shared library environment setting for IBM Netezza
IBM Netezza version	Shared library environment setting
IBM Netezza 1.0 and higher	UNIX: Add $NZ_DIR/lib (for 32 bit) or $NZ_DIR/lib64 (for 64 bit) to LD_LIBRARY_PATH (or its equivalent). Windows: Add %NZ_DIR%\bin to PATH.

Check the database client locale settings. The database client locale must match the locale used by the runtime system (LC_ALL,LANG).

You can test the client environment by trying to connect to the server with the SQL command line tool:

$ nzsql -h hostname system username password

Set up the fglprofile entries for database connections.

Important: Make sure that you are using the ODI driver corresponding to the database client and server version. Because Informix^® features emulation is dependent on the database server version, it is mandatory to use the same version of the database client and ODI driver as the server version.