Trying to work with a database on remote machines can be a pain sometimes...
This script will dump SP_HELP to the web browser, and allow the user to select one or more tables. Selected tables will then have their structure shown.
use strict;
use DBI;
use CGI qw(:all);
use CGI::Carp qw(fatalsToBrowser);
$|++;
print header ();
print start_html;
my $db_username="user";
my $db_password="password";
my $db_serverstring="DBI:Driver:here";
my $dbh = DBI->connect ($db_serverstring, $db_username, $db_password) 
+|| die ("Cannot connect to database -- DBI reports ", $DBI::errstr);







print "\n";
if (param("view")) {
    h3"<CENTER>Viewing tables</CENTER>";
    my @tables = param("view");
    foreach (@tables) {
        my $sql = $dbh->prepare ("sp_columns $_") || die;;
        my $sth = $sql->execute or die "no ".$DBI::errstr;
        print h3("<CENTER>Viewing table $_</CENTER>"),"<TABLE Border =
+ 1>\n";
        my $THdone;
        while (my $result_ref = $sql->fetchrow_hashref()){
            unless ($THdone) {
                foreach (sort keys %$result_ref) {
                    print "<TH>$_ </TH>";
                }
                $THdone = "yes, indeedy!";
            }
            print "<TR>";
            foreach (sort keys %$result_ref) {
                if (! defined $$result_ref{$_}) {print "<TD><I>undef</
+i></TD>";next}
                print "<TD>$$result_ref{$_}</TD>";
            }
            print "</TR>\n";

        }
        print "</TABLE><BR><BR>";
    }
} else {
    print h2"<CENTER>Viewing sp_help</CENTER>";
    print start_form;
    my $sql = $dbh->prepare ("sp_help") || die;;
    my $sth = $sql->execute or die "no ".$DBI::errstr;
    print "<TABLE Border = 1>\n<TH>Select me!</TH>";
    my $THdone;
    while (my $result_ref = $sql->fetchrow_hashref()){
        unless ($THdone) {
            foreach (sort keys %$result_ref) {
                print "<TH>$_ </TH>";
            }
            $THdone = "yes, indeedy!";
        }
        print "<TR><TD>",checkbox(-name=>"view",-checked=>"", -value=>
+"$$result_ref{Name}"),"</TD>";
        foreach (sort keys %$result_ref) {
            if (! defined $$result_ref{$_}) {print "<TD>--undef--</TD>
+";next}
            print "<TD>$$result_ref{$_}</TD>";
        }
        print "</TR>\n";

    }
    print "</TABLE>";
    print submit;
    print end_form;
}
print end_html;

[download]

Replies are listed 'Best First'.
(crazyinsomniac) Re: SP_HELP_DUMP
by crazyinsomniac (Prior) on Apr 21, 2001 at 18:06 UTC
    You know what sucks even more, not having sp_help and sp_columns (I found that out, right after I found out there was no DBI on the server, jeez.).

    Anyway, please provide us(me), the sp_* less monks with a working version. Since I can't test this, I don't guarantee it, not that I would anyway, but here's a few workarounds.

    First off I'd change line 

    my $sql = $dbh->prepare ("sp_columns $_") || die;;

    [download]
    to 
    my $sql = $dbh->prepare ("SHOW COLUMNS FROM $_") || die;

    [download]
    That should work without question. (note the single ; %^)

    And so should this 

        my @tables = $dbh->ListTables;

    print "<TABLE Border = 1>\n<TH>Select me!</TH>";
    foreach (@tables)
    {
        print "<TR><TD>",checkbox(-name=>"view",-checked=>"", -value=>
+"$tables[$_]"),"</TD>";

        if(! (defined $tables[$_]) )
        {
            print "<TD>--undef--</TD>";
        }
        else
        {
            print "<TD>$tables[$_]</TD>";
        }
        print "</TR>\n";

    }

    [download]
    as opposed to 
        my $sql = $dbh->prepare ("sp_help") || die;;
    my $sth = $sql->execute or die "no ".$DBI::errstr;
    print "<TABLE Border = 1>\n<TH>Select me!</TH>";
    my $THdone;
    while (my $result_ref = $sql->fetchrow_hashref()){
        unless ($THdone) {
            foreach (sort keys %$result_ref) {
                print "<TH>$_ </TH>";
            }
            $THdone = "yes, indeedy!";
        }
        print "<TR><TD>",checkbox(-name=>"view",-checked=>"", -value=>
+"$$result_r
+ef{Name}"),"</TD>";
        foreach (sort keys %$result_ref) {
            if (! defined $$result_ref{$_}) {print "<TD>--undef--</TD>
+";next}
            print "<TD>$$result_ref{$_}</TD>";
        }
        print "</TR>\n";

    [download]
    update:
    After further examination of your code, I decided to just substitute my $sql = $dbh->prepare ("sp_help") || die; with my $sql = $dbh->prepare ("SHOW TABLES") || die;
    But then I noticed yer code did not work as advertised. I ofcourse, knowing I couldn't get my money back, went ahead and "fixed" it. I just moved the "checkbox" statement inside the loop and(once in the loop), inside the if block. 
                if (! defined $$result_ref{$_})
            {
                print "<TD>",checkbox(-name=>"view",-checked=>"", -val
+ue=>),"</TD>";
                print "<TD>--undef--</TD>";
                next;
            }

            print "<TD>",checkbox(-name=>"view",-checked=>"", -value=>
+"$$result_ref{$_}"),"</TD>";
            print "<TD>$$result_ref{$_}</TD>";

    [download]
    You know, I was really suprised by this, especially coming from you boo.
    I wonder how many people blindly ++ed your post?

     
    ___crazyinsomniac_______________________________________
    Disclaimer: Don't blame. It came from inside the void
    perl -e "$q=$_;map({chr unpack qq;H*;,$_}split(q;;,q*H*));print;$q/$q;"

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