Programming the Perl DBI

Handles

The DBI defines three main types of objects that you may use to interact with databases. These objects are known as handles. There are handles for drivers, which the DBI uses to create handles for database connections, which, in turn, can be used to create handles for individual database commands, known as statements. Figure 4.3 illustrates the overall structure of the way in which handles are related, and their meanings are described in the following sections.

Figure 4-3. DBI handles