Beefy Boxes and Bandwidth Generously Provided by pair Networks
Just another Perl shrine

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
Why is the hash labels ordered 2,0,1 ?

I thought the comments above the hash explained that. "%procs contains the names of the valid stored procs together with the number of parameters each requires". The key of each hash entry is the name of a valid stored proc. The value associated with the key is the number of parameters that each stored proc requires. The actual numbers that I used (2, 0, 1) were just sample numbers that I made up at random.

why do we have sth->execute(@CHOICE);

That is how you put values into the placeholders in an SQL statement. So if you have an SQL statement that is something like select foo from bar where baz = ? then you pass the value for baz as a parameter to the execute function. If you have more than one placeholder (as we do in this case) then we can pass a list (or, in this example, an array that is converted to a list) instead.

Of course, you could have got all this from the DBI documentation.

Why does the EXEC die if there is not the expected number of elements in the array

If you have placeholders in your SQL statement, then execute must be passed enough parameters to match all of the placeholders. If there are too many or too few parameters then execute will throw a fatal error.

In reply to Re^3: Preventing malicious T-SQL injection attacks by davorg
in thread Preventing malicious T-SQL injection attacks by Win

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, 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, 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.
  • Log In?

    What's my password?
    Create A New User
    and all is quiet...

    How do I use this? | Other CB clients
    Other Users?
    Others drinking their drinks and smoking their pipes about the Monastery: (8)
    As of 2018-03-21 13:32 GMT
    Find Nodes?
      Voting Booth?
      When I think of a mole I think of:

      Results (267 votes). Check out past polls.