I need to query database base on the search criteria coming with the URL. I had this code below, but one thing that I really don't like is the fact that I am not actully benefited from prepare and binding any more. Well, I am looking for something neater.

  
 if (defined($query{"component"}) || defined($query{"env"})) {
    my $dbh = DBI->connect("DBI:mysql:test", "root", "930612", {'Raise
+Error' => 1});
    my $query = "SELECT * FROM or_mod";
    if (defined($query{"component"})) {
     if ($query eq "SELECT * FROM or_mod") {
      $query = $query . " where upper(component) = upper('" . $query{"
+component"} . "')"; 
#I am forced to deal with quotes myself, as I am not binding later
     } else {
      $query = $query . " and upper(component) = upper('" . $query{"co
+mponent"} . "')"; 
# I know this is not needed here. I did it just in case some day someo
+ne reverse the order of codes
     }
    }
    if (defined($query{"env"})) {
     if ($query eq "SELECT * FROM or_mod") {
      $query = $query . " where upper(env) = upper('" . $query{"env"} 
+. "')";
     } else {
      $query = $query . " and upper(env) = upper('" . $query{"env"} . 
+"')";
     }
    }
    $query = $query . " order by env, application, component, mod_date
+ desc";
    print $query;
    my $sth = $dbh->prepare($query); 
#This prepare is unreal. One is supposed to prepare a statement only o
+nce
    $sth->execute();

[download]

In reply to Looking for neater solution with dynamic query by pg

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.