cpan> install DBD::Oracle
CPAN::SQLite not installed, trying to work without
Reading 'C:\STRAWB~1\cpan\Metadata'
  Database was generated on Sun, 01 Jan 2023 22:54:07 GMT
Running install for module 'DBD::Oracle'
Fetching with LWP:
http://cpan.strawberryperl.com/authors/id/Z/ZA/ZARQUON/DBD-Oracle-1.83
+.tar.gz
LWP failed with code[501] message[Can't load 'C:\xampp\perl\vendor\lib
+/auto/Net/SSLeay/SSLeay.xs.dll' for module Net::SSLeay: load_file:Le 
+module spÚcifiÚ est introuvable (LWP::Protocol::https not installed)]
Warning: no success downloading 'C:\STRAWB~1\cpan\sources\authors\id\Z
+\ZA\ZARQUON\DBD-Oracle-1.83.tar.gz.tmp4192'. Giving up on it.
Fetching with LWP:
http://www.cpan.org/authors/id/Z/ZA/ZARQUON/DBD-Oracle-1.83.tar.gz
Fetching with LWP:
http://www.cpan.org/authors/id/Z/ZA/ZARQUON/CHECKSUMS
Checksum for C:\STRAWB~1\cpan\sources\authors\id\Z\ZA\ZARQUON\DBD-Orac
+le-1.83.tar.gz ok
Scanning cache C:\STRAWB~1\cpan\build for sizes
......................................................................
+......DONE
Configuring Z/ZA/ZARQUON/DBD-Oracle-1.83.tar.gz with Makefile.PL
Can't locate DBI.pm in @INC (you may need to install the DBI module) (
+@INC contains: C:/xampp/perl/site/lib C:/xampp/perl/vendor/lib C:/xam
+pp/perl/lib .) at Makefile.PL line 20.
BEGIN failed--compilation aborted at Makefile.PL line 20.
Warning: No success on command[C:\xampp\perl\bin\perl.exe Makefile.PL]
  ZARQUON/DBD-Oracle-1.83.tar.gz
  C:\xampp\perl\bin\perl.exe Makefile.PL -- NOT OK
Stopping: 'install' failed for 'DBD::Oracle'.
Failed during this command:
 ZARQUON/DBD-Oracle-1.83.tar.gz               : writemakefile NO 'C:\x
+ampp\perl\bin\perl.exe Makefile.PL' returned status 512

cpan>
[download]

The error message contains (LWP::Protocol::https not installed) - most likely, you don't have that module installed. This is weird since Strawberry Perl usually contains it, and also contains SSLeay.xs.dll.

How did you install Strawberry Perl? Is there such a file SSLeay.xs.dll on your harddisk somewhere?

A complete stab in the dark but, from LWP::Protocol::https:

"This module used to be bundled with the libwww-perl, but it was unbundled ..."

I recall encountering a problem with LWP::Protocol::https some time ago. The solution was to install LWP::Protocol::https after installing libwww-perl. I've no idea if this helps here, but thought it was worth mentioning.

— Ken