iODBC SDK Development iODBC SDK on Unix The Configuration Files The iODBC library searches for Data Source Names (DSNs) using the following resources: $ODBCINI - the environment variable, if set ~/.odbc.ini - in your home-directory, if it exists /etc/odbc.ini - a system-wide default The format of the odbc.ini file is very simple. There are 3 sections; one for ODBC itself, one for a list of DSNs, and one for the definitions of those DSNs. For example:[ODBC] Debug = 1 Trace = 0 DebugFile = /home/tim/temp/odbc-debugfile.log TraceFile = /home/tim/temp/odbc-tracefile.log TraceAutoStop = 1 [ODBC Data Sources] Virtuoso30 = OpenLink Virtuoso 3.0 [Virtuoso30] Description = Virtuoso 3.0 Driver = /opt/opl/virtuoso-o12/lib/virtodbc.so Address = localhost:1111 UserName = dba User = dba Each DSN has an entry in the `ODBC Data Sources' section and a complete definition in a paragraph section of its own.There is also an ODBCINSTINI file. This file provides the full path to any installed drivers and any setup files associated with them.[ODBC Drivers] OpenLink Generic = installed [OpenLink Generic] Driver = /opt/openlink/odbcsdk/lib/oplodbc.so