Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl: the Markov chain saw
 
PerlMonks  

Re: DBI Frustrations

by gmax (Abbot)
on Sep 16, 2004 at 17:43 UTC ( #391518=note: print w/replies, xml ) Need Help??


in reply to DBI Frustrations

You are mixing a statement handler with its result.

$subs_rst = $subs_str->execute(); # execute subnet select

This instruction returns the execution result, i.e. if the query was executed correctly. (See the DBI docs).

For your fetch statement you need to use $subs_str, i.e.the statement handler.

As a side note, be aware that the execute method DOES NOT return the number of rows for a SELECT query.

Moreover (this is not related to your problem, but it can create other unpleasant side effects) you should not interpolate variables in your queries, but use placeholders instead.

Update
By deleting the original content, you made this answer - and the other ones below - almost meaningless. It's a pity, because the value of a PerlMonks node is in the question as much as in the answer. Other people can benefit from your mistakes. Don't be ashame of that. Everybody makes mistakes. The important thing is to learn from them, so please put the question back in place.

 _  _ _  _  
(_|| | |(_|><
 _|   

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://391518]
help
Chatterbox?
[chacham]: survival of the fittest?
LanX "If Croesus goes to war he will destroy a great empire."

How do I use this? | Other CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (5)
As of 2017-03-29 09:57 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Should Pluto Get Its Planethood Back?



    Results (344 votes). Check out past polls.