16.20 - Coexistence of Different Version Drivers on the Same Machine - ODBC Driver for Teradata

ODBC Driver for Teradata® User Guide

ODBC Driver for Teradata
August 2020
User Guide

For ODBC Driver for Teradata starting with, for UNIX bundle, Windows, and OS X Suites, multiple releases can co-exist on the same system. For example,, and later versions can co-exist on the system at the same time.

If a specific version of the driver that is not the active TTU version is needed by an application, then the ODBCINI environment variable must be set to <InstallDir>/Teradata/client/<desired version>/odbc_32/odbc.ini for 32 bit or <InstallDir>/Teradata/client/odbc_64/odbc.ini for 64-bit, and that odbc.ini file must be updated accordingly.

.env Files

Another option is to use the .env files provided for each OS. The .env files are located in <prefix>/teradata/client/16.20/<etc>.

For UNIX and OS X:
  • ttu_1620_bash.env
  • ttu_1620_csh.env
For AIX:
  • ttu32_1620_bash.env
  • ttu32_1620_csh.env
  • ttu64_1620_bash.env
  • ttu64_1620_csh.env

The .env file can be sourced in a terminal window so that release is active in that session.