Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl Monk, Perl Meditation
 
PerlMonks  

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??
I use Perl to interrogate our SMS database via WMI quite a bit. On this occasion, I want to extract the count of items in a table but can't get Perl to reveal the results! We start with the normal connection to WMI...
# Connect to WMI on reporting server # my $SWbemLocator = Win32::OLE->new("WbemScripting.SWbemLocator") or FatalCOMError("Can't open WbemScripting object"); my $SWbemServices = $SWbemLocator->ConnectServer($Server, "root/sms/si +te_$SiteCode") or FatalCOMError("Can't connect to server: $Server");
If I then submit a "straight" query...
# Get count of clients in collection my $WQL = q/select * from SMS_CM_RES_COLL_CEN01562/; $Colln = $SWbemServices->ExecQuery($WQL,"WQL",16) or FatalErr("Exe +cQuery for Clients failed",1); $count = $Colln->{Count};
...$count contains the count of items in the collection. Unfortunately, on a large collection, this can be a bit slow. Ideally, I'd use the count(*) WQL command like so;
# Get count of clients in collection my $WQL = q/select count(*) from SMS_CM_RES_COLL_CEN01562/; $Colln = $SWbemServices->ExecQuery($WQL,"WQL",16) or FatalErr("Exe +cQuery for Clients failed",1);
The problem that I have with this code is that, no matter what I try, I can't get to the actual result!

If I try the same query on WbemTest, I get a single-line answer that shows the correct answer. How do I get to it in Perl?

Can anyone help?


In reply to Extracting WQL "count" results by rod

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, 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?
    Username:
    Password:

    What's my password?
    Create A New User
    Domain Nodelet?
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this?Last hourOther CB clients
    Other Users?
    Others pondering the Monastery: (8)
    As of 2024-07-17 09:21 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      No recent polls found

      Notices?
      erzuuli‥ 🛈The London Perl and Raku Workshop takes place on 26th Oct 2024. If your company depends on Perl, please consider sponsoring and/or attending.