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

Re: Getting length of longest value in a column

by repellent (Priest)
on Feb 21, 2012 at 04:05 UTC ( [id://955220]=note: print w/replies, xml ) Need Help??


in reply to Getting length of longest value in a column

Have the database do the work for you:
my $query = <<'SQL';
SELECT ticket_id, abstract, priority, maxlen_abstract
FROM
  (SELECT MAX(LENGTH(abstract)) AS maxlen_abstract FROM t1) AS s1
  CROSS JOIN t1;
SQL

[download]

Pay special attention to what your definition of length should be. You may not be in an ASCII-world.

In Section Seekers of Perl Wisdom

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?

www.com | www.net | www.org
Node Status?
node history
Node Type: note [id://955220]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? • Last hour • Other CB clients
Other Users?
Others wandering the Monastery: (6)
As of 2024-04-23 15:57 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found