Thank you for your guidance. I do not know if they were on my system. I may never know. I cannot know for certain, which means that I am uncertain of something which does not exist.
Whatever would be properly done should be done without error. I, however, have done less than that. Or perhaps more than that. The excess and the deficient. That which is and that which is not.
But certainly, I have erred in the way of excess, for as you can see, I have attempted to install the module multiple times without knowing what I was doing:
/Users/UserName1/.cpan/build/DBD-Pg-3.3.0-_Lh4Ff/blib/arch/auto/DBD/Pg
/Users/UserName1/.cpan/build/DBD-Pg-3.3.0-_Lh4Ff/blib/lib/auto/DBD/Pg
/Users/UserName1/perl5/lib/perl5/darwin-thread-multi-2level/auto/DBD/Pg
/Users/UserName2/.cpan/build/DBD-Pg-3.3.0-Szwk6r/blib/arch/auto/DBD/Pg
/Users/UserName2/.cpan/build/DBD-Pg-3.3.0-Szwk6r/blib/lib/auto/DBD/Pg
And I appended many paths in an effort to connect that which was lost, but that also was lost. For though the installation goes on and on onto the system, the module goes onto User accounts. So it was that the error became evident:
Can't locate loadable object for module DBD::Pg in @INC (@INC contains:
/Library/Perl/5.16/darwin-thread-multi-2level
/Library/Perl/5.16 /Network/Library/Perl/5.16/darwin-thread-multi-2level
/Network/Library/Perl/5.16
/Library/Perl/Updates/5.16.2/darwin-thread-multi-2level
/Library/Perl/Updates/5.16.2
/System/Library/Perl/5.16/darwin-thread-multi-2level
/System/Library/Perl/5.16
/System/Library/Perl/5.16/darwin-thread-multi-2level
/System/Library/Perl/5.16
/System/Library/Perl/5.16/DBD-Pg-3.3.0
.) at /Library/WebServer/CGI-Executables/DBConn.pl line 3.
For nothing here is the same. But that which is lost cannot be made one with that which seeks until that which is other is made one and the same. For all is one and the truth is one and the same. But my files and configurations are many and various and without order or sameness. Perhaps it would have been better if, when things did not work properly, I had stopped, and thought about what I was doing. But alas, how can we know that which is not yet, or if it would be better to act or to act not.
And now I wonder even if I should buy another computer and start fresh. Perhaps an iPad.