IV. Client Interfaces
This part describes the client programming interfaces distributed
with PostgreSQL. Each of these chapters can be
read independently. Note that there are many other programming
interfaces for client programs that are distributed separately and
contain their own documentation (Appendix H
lists some of the more popular ones). Readers of this part should be
familiar with using SQL commands to manipulate
and query the database (see Part II) and of course
with the programming language that the interface uses.