Review these topics to install Open Database Connectivity (ODBC) and Lightweight Directory Access Protocol (LDAP).
About ODBC Drivers and Oracle Database
Open Database Connectivity (ODBC) is a set of database access APIs that connect to the database, prepare, and then run SQL statements on the database.
Installing ODBC Drivers for IBM AIX
If you intend to use ODBC, then install the most recent ODBC Driver Manager for IBM AIX on POWER Systems (64-Bit).
About LDAP and Oracle Plug-ins
Lightweight Directory Access Protocol (LDAP) is an application protocol for accessing and maintaining distributed directory information services over IP networks.