php - MySQL Query with one-to-many -

-

i new mysql , need query here sample data columns: 

modelid styleid sequence 19463   316811  0 19463   316812  1 19463   316813  2 19463   316814  3 19463   316920  4 19463   316921  5 19727   318010  0 19727   318011  2 19727   318012  1 19727   318013  3 19884   320053  0 19884   320054  1 19884   320055  2 19884   320056  3 19998   321302  0 19998   321303  1 19998   321304  2 19998   321305  3 19998   321306  4 19998   321307  5 19998   321308  6 19998   321309  7

i need 1 styleid every modelid, preferably sequence of 0 or 1, sequence not matter, can random.

the best result this, cant use sequence = 0 clause though:

modelid styleid sequence 19463   316811  0 19727   318010  0 19884   320053  0

thanks

try this

select modelid, max(styleid),min(sequence) mytable  group modelid

Comments

Post a Comment

Popular posts from this blog

html5 - What is breaking my page when printing? -

-
Image
i have questioner , don't know why when printing it's creating break before first question. live demo (link) i able resolve issue removing fieldset container had wrapped in.. having fieldset element causing of fields grouped together, , since not fit on first page, being pushed second page. removing fieldset element, able firefox print first 2 questions on page 1 identically chrome. it seems not new problem firefox , fieldset not playing nice found old bugzilla ticket 2008 has persisted , still being commented on in 2014 (link) if retaining fieldset important, found solution else came here (link) <script type='text/javascript'> $(window).bind('beforeprint', function(){ $('fieldset').each( function(item) { $(this).replacewith($('<div class="fieldset">' + this.innerhtml + '</div>')); } ) }); $(window).bind(
Read more

html - Unable to style the color of bullets in a list -

-
i'm trying change colour of list points it's not working? <div class="mobile-menu" id="mobile-menu"> <div id="mobile-menu-links"> <h4>general:</h4> <ul class="mobile-menu-links"> <li><a href="">news</a></li> <li><a href="">the boring rules!</a></li> <li><a href="">the rankings</a></li> </ul> .mobile-menu #mobile-menu-links ul{ list-style-type: none; margin:0; padding-left:3%; } .mobile-menu #mobile-menu-links ul li{ padding-bottom:2px; border-bottom:1px solid #bababa; } if add color:red in either of 2 css declarations, doesn't change colour. please note html closed in document, copi
Read more

c# - must be a non-abstract type with a public parameterless constructor in redis -

-
when save object, got below error must non-abstract type public parameterless constructor in order use parameter 't' in generic type or method 'servicestack.redis.redisclient.store<t>(t) redisclass.getinstnace().store(msg); // error here redisclass.getinstnace().save(); as third party's class, can not edit how save object? could create wrapper around third party object call constructor, store wrapper? e.g. public class mywrapper { public thirdpartyobject thirdpartyinstance { get; set; } public mywrapper() { thirdpartyinstance = new thirdpartyobject("constructors"); } }
Read more