in reply to
Re: Too many arguments to connect-help?
in thread Too many arguments to connect-help?
it does not document if "dbi" in lower-case will be accepted.
A DBD driver only prescribes the dsn-part after 'dbi:drivername:', and the DBI docs do document it; in fact, it actually does not document that uppercase DBI is accepted :-)
The $data_source value must begin with "dbi:driver_name:". The driver_name specifies the driver that will be used to make the connection. (Letter case is significant.)
(@NetWallah's below reply), yes I quite agree.