Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses

Re: Placeholders and Negative Numbers..

by jZed (Prior)
on Dec 11, 2007 at 17:17 UTC ( #656434=note: print w/replies, xml ) Need Help??

in reply to Placeholders and Negative Numbers..

From the DBI documentation for $sth->rows():
Generally, you can only rely on a row count after a non-SELECT execute (for some specific operations like UPDATE and DELETE), or after fetching all the rows of a SELECT statement. For SELECT statements, it is generally not possible to know how many rows will be returned except by fetching them all.
So $sth->rows() is, by definition, the wrong thing to use with SELECT statements and is not guaranteed to give you the answer you expect. Do as the docs say and count the fetches or else do a separate COUNT query.
  • Comment on Re: Placeholders and Negative Numbers..

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://656434]
[marto]: Sharepoint ss a mess
[marto]: /ss/is/
[Discipulus]: yes I can imagine marto but they dont take my opinion in consideration..
[marto]: I told our client this, they spent many years and lots of consultants to try and get it to do what they wanted. They're ditching it now
[Discipulus]: I hope at least a minimal implementation, in the middle of july i'll have the first introductional course..
Discipulus nemo profeta in patria..

How do I use this? | Other CB clients
Other Users?
Others pondering the Monastery: (7)
As of 2017-06-27 09:10 GMT
Find Nodes?
    Voting Booth?
    How many monitors do you use while coding?

    Results (601 votes). Check out past polls.