Beefy Boxes and Bandwidth Generously Provided by pair Networks
P is for Practical

Re: Getting length of longest value in a column

by repellent (Priest)
on Feb 21, 2012 at 04:05 UTC ( #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

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

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://955220]
and the monastery is silent...

How do I use this? | Other CB clients
Other Users?
Others cooling their heels in the Monastery: (13)
As of 2016-12-07 13:41 GMT
Find Nodes?
    Voting Booth?
    On a regular basis, I'm most likely to spy upon:

    Results (127 votes). Check out past polls.