Comments on: Ignore duplicate entries in MySQL select using DISTINCT keyword

By: Hansie

Hansie — Thu, 31 Mar 2011 10:29:00 +0000

pl can anybody help!!
i m stuck with this, select * from table where this!=that and column should be distinct

By: bwy

bwy — Fri, 03 Dec 2010 21:54:00 +0000

Use

ORDER BY dateofevent DESC

By: Britinusag1

Britinusag1 — Fri, 24 Sep 2010 15:15:00 +0000

How about selecting the most recent of all the duplicates?
ie. If table has columns table.key,table.userid,table.dateofevent,table.event

Then how to select the most recent event for each userid?

TIA.

Paul

By: Brian

Brian — Mon, 08 Mar 2010 15:44:00 +0000

You can’t do that with DISTINCT.

You would do that using GROUP BY on your query. MySQL will maintain association of the row data, so you can’t for example select distinct givenname and return all of the party results at the same time because one might return 50 results and the other only 2 or something of that nature.

You may be looking for something more like:
SELECT givenname, party FROM presidents GROUP BY givenname

This will return a resultset with each row having a distinct givenname while also returning the associated party for that person.

By: Frank

Frank — Mon, 01 Feb 2010 18:37:00 +0000

Thanks, this helped me solve a big problem. You’re the man!

By: indian blogs

indian blogs — Sat, 21 Nov 2009 15:28:00 +0000

this is what i was searching :) thaks man

By: Anonymous

Anonymous — Tue, 27 Oct 2009 09:16:00 +0000

hey maverick i was just wondering if u got the answer to ur question ????
am having the same problem …
thanx

By: chandan

chandan — Fri, 14 Aug 2009 16:32:00 +0000

some weird distinct in mysql 5.0.1 version :(

By: maverick

maverick — Thu, 30 Jul 2009 05:51:00 +0000

How do you select query with multiple columns unique distinct values from a single column?

statement:
select givenname, party from presidents;

I want only the givenname to be distinct and not the party?

By: mistat

mistat — Sat, 13 Jun 2009 12:40:00 +0000

Works a charm – just what I was looking for – thanks!