Connecting to Databases

Connecting to one or more databases is a four-step process:

1. Creating and initializing a database handle for each database to be attached.
2. Creating and populating a DPB for each database to be attached.
3. Optionally calling isc_expand_dpb() prior to actual attachment to add more database parameters to a populated DPB.
4. Calling isc_attach_database() for each database to which to connect.
   

These steps are described in the following sections of this chapter.

• Creating Database Handles
• Creating and Populating a DPB
• DPB Parameters
• Adding Parameters to a DPB
• Attaching to a Database