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Top Forums Shell Programming and Scripting mysql help : query with 2 conditionals Post 302371942 by hcclnoodles on Monday 16th of November 2009 07:00:15 PM
Old 11-16-2009
mysql help : query with 2 conditionals

Hi there, I have a table that stores multiple records for many different servers, each of which is timestamped ... I wanted to write a query that would enable me to only output the "latest" record (based on timestamp) for each "unique" server. So for example my main table looks like this

Code:
SERVER		NIC	IP		DATESTAMP		
server1		BGE0	1.1.1.1		10-JUN
server1		BGE0	1.1.2.1		09-JUN
server1		BGE1	2.2.2.2		10-JUN
server2		CE0	3.3.3.3		6-APR
server1		BGE1	2.2.2.1		11-JUN
server2		CE0	3.3.3.1		5-MAR

so the query would get only the latest record for each server. so the output would be


Code:
SERVER		NIC	IP		DATESTAMP		
server2		CE0	3.3.3.3		6-APR
server1		BGE1	2.2.2.1		11-JUN

Ive been playing around and am not quite sure how i integrate two conditionals inside a single statement, i.e. 1) unique server 2) latest timestamp

apologies for the nooby question but im new to this and any guidance would be great
 

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mtailrc(5)							   User Manuals 							mtailrc(5)

NAME
mtailrc - Configuration file for monkeytail DESCRIPTION
A monkeytail configuration uses Apache-style syntax to declare "groups" of files to be tailed. Best explained with an example: <group testgroup> prefix 'server2: ' sudo yes <file> filename /var/log/apache2/access.log prefix 'server1: ' host server1.example.com </file> <file> filename /var/log/apache2/access.log host server2.example.com sudo no </file> </group> OPTIONS
All options can be either put inside a group or file block. Options inside a file block override those in the group block. filename filename filename defines the filename for this block. host remote-host (optional) host defines that this block's file is to be tailed on a remote server. sudo yes|no|1|0 sudo is a boolean specifying whether this file should be tailed as root. This option is supported for both local and remote files (in both cases you will potentially be prompted for your password). prefix "string: " prefix allows you to specify a short string that will be prepended to every line that is displayed for that given file. FILES
~/.mtailrc - user specific monkeytail config SEE ALSO
mtail(1), tail(1) AUTHOR
Martyn Smith <martyn@dollyfish.net.nz> mtail May 2008 mtailrc(5)
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