my $class;
    my $sql;
    my @bindparms;
    my $Rowcount;
    my $Status;
    my $cntl;
    my $db;
    my $start;
    my $end;
    my $posn;
    my $SQLStr;
    my $host;
    my $Properties;
    
    @bindparms = $_;
    $class = shift @bindparms;
    $cntl = shift @bindparms;
    $sql = shift @bindparms;
[download]

A couple of stylistic points, from the above sub-set of your code.

• It's neater to declare variables in a list, so as to make better use of space. So, my ( $class, $sql, .. ); is much cleaner than what you have, which is one variable declaration per line. I would probably group related variables together -- they don't all have to be on a single line.
• You don't have to group variable declarations all at the beginning of a block, as we used to do in C. (I believe that was because they needed to be allocated on the stack by the compiler.) Declare variables when you're about to use them.
• I won't comment on the choice of camelCase versus snake_case, but it is a good idea to be consistent. You've got some variable names that are lower case, and some that are Capital case (initial capital letter, followed by lower case).
• You set @bindparams to @_, then use shift to initialize the three variables $class, $cntl and $sql. It's probably easier and cleaner just to say my ( $class, $cntl, $sql ) = @_;
• Whenever you're passing arguments into a method, you should do validation on the arguments. At the very least, check each input to find out a) Is it defined? and b) Does it have a reasonable value? Only move forward if the input arguments are absolutely fine; otherwise, output a useful error message and return (or die/croak, whichever is appropriate).

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