Your code is pretty much unreadable now, as it's one blob of text, but I can see this: 
my $query_detail1 = "select querydata from querydetail where querytitl
+e='$querytitle'"; 
my $query_records1 = $conn->prepare($query_detail1)

[download]
Do not, ever, embed values from variables directly into a query. Use placeholders instead, that is, typically, a question mark for every value, without any quotes: 
my $query_detail1 = "select querydata from querydetail where querytitl
+e=?"; 
my $query_records1 = $conn->prepare($query_detail1)

[download]
You later have to pass the proper value(s) when you call the execute method on the statement handle: 
$query_records1->execute($querytitle)

[download]

I don't know the query select * from EMP where EMPNO = &eno syntax. Is this some form of placeholder too? If so, it doesn't look familiar, and Google doesn't help me there. (Placeholders in Oracle typically look like ":foo"; and I think that that syntax will work from DBI too.)

In reply to Re: Oracle Placeholder Problem in my Perl Script by bart
in thread Oracle Placeholder Problem in my Perl Script by slg_saravanan

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.