system/config/database.php
default
Database connection settings, defined as arrays, or "groups". If no group name is used when loading the database library, the group named "default" will be used.
Each group can be connected to independently, and multiple groups can be connected at once.
Group Options:
- character_set
- Database character set
- table_prefix
- Database table prefix
- object
- Enable or disable object results
- cache
- Enable or disable query caching
- escape
- Enable automatic query builder escaping
Default value: array