use DBI;
use DBIx::SystemCatalog;
use strict;

my $dbh = DBI->connect("dbi:Oracle:DATABASENAME", "USERNAME", "PASSWOR
+D", {
        AutoCommit => 0
});

my $catalog = new DBIx::SystemCatalog $dbh;
$catalog->schema('SCHEMANAME');

my %successor;
for ($catalog->relationships()){
# this list took a long time to generate.
    push @{$successor{ $_->{from_table} }} , $_->{to_table} ;
    push @{$successor{ $_->{to_table} }} , $_->{from_table} ; 
}

#start the search

my $START = 'NAME_OF_START_TABLE';
my $END = 'NAME_OF_END_TABLE';

my @stack; push @stack, $START;
my $current; my %visited; my %parentof;

while ($current ne $END){
    $current = pop(@stack) or die "Ran out of things to search";
    $visited{$current}++;
    print "Currently searching: $current\n";

    for (@{$successor{$current}}){
        next if /DICT$/; # Ignore table names ending in "DICT" - it he
+lped in my case.
        next if $visited{$_};
        unshift @stack, $_;
        $parentof{$_} = $current;
        print "Queued: $current -> $_\n";     }
}

print br();
#traceback path;
my @lineage;
while ($current){
    unshift @lineage, $current;
    $current = $parentof{$current}
}

print "\nFinal path is: ", join('->', @lineage), "\n";

[download]

In reply to DB tablespace searching by pseudomonas

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.