If you're looking for a way of deleting old *records* from an SQL-based DBMS, then you can usually do this with pure SQL (and thus in any language you like that provides DB connections), assuming that you stored the original record-creation time (rec_timestamp, in the example below).
Therefore, a simple Perl program to do this with MYSQL would look something like...
my $dbh = DBI->connect("DBI:mysql:db_name","user","pass") || die $DBI:
$dbh->do("delete from mytable where to_days(rec_timestamp) < to_days(n
+ow()) - 90");