Hi,

I'm trying to check if a date is null and then set a flag accordingly using CASE. The query works fine in Query Analyser and it works if I remove the CASE statement. However, this is what I get with the case included: 
DBD::ODBC::st execute failed: [Microsoft][ODBC SQL Server Driver]
Invalid character value for cast specification 
(SQL-22018)(DBD: st_execute/SQLExecute err=-1)

[download]
I split it over a few lines for readability.

I confess to being quite stuck. I suspect I need to change the default casting for my query based on it examining the date_completed column but its not something I could find on the web via google. Here is my query: 
select
    ID,
    project_ID,
    title,
    details,
    DATEPART(dd, date_expected),
    DATEPART(mm, date_expected),
    DATEPART(yyyy, date_expected),
    DATEPART(dd, date_completed),
    DATEPART(mm, date_completed),
    DATEPART(yyyy,date_completed),
    is_complete = case 
        when date_completed is null then 0
        else 1
    end
from
    MILESTONES
where
    ID = 1

[download]
Thanks in advance for any help, suggestions.

Simon

In reply to SQL Server CAST problem using CASE with DBD::ODBC by simon.proctor

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.