sql - Return unique rows based on minimum id in mysql -


i've stuck on this:
need guid based on minimum id , remove other duplicates (guid, id). id unique field here.

+-----------------------------+------+-------------+ | guid                        | id   | post_parent | +-----------------------------+------+-------------+ | 5.jpg                       | 7626 |        2418 | | 3.jpg                       | 7625 |        2418 | | 2.jpg                       | 5972 |        2418 | | 2.jpg                       | 3000 |        2420 | | 0.jpg                       | 3205 |        2420 | | 9.jpg                       | 9205 |        2419 | +-----------------------------+------+-------------+

so want:

+-----------------------------+------+-------------+ | guid                        | id   | post_parent | +-----------------------------+------+-------------+ | 2.jpg                       | 5972 |        2418 | | 2.jpg                       | 3000 |        2420 | | 9.jpg                       | 9205 |        2419 | +-----------------------------+------+-------------+

sure, may use this: 

select guid,        id         wp_posts id = (          select min(id) wp_posts          post_parent="2418");

but need data table, not single rows.

select *    wp_posts p,        (select min(id) id, post_parent           wp_posts        group post_parent) mins   p.id = mins.id , mins.post_parent = p.post_parent

Comments

Post a Comment

Popular posts from this blog

javascript - AngularJS custom datepicker directive -

i make custom datepicker directive custom template. but have no idea how start building it... how include date data directive? i appreciate guide or give me advice work on more precisely. it might you! follow below steps html code sample: <label>birth date</label> <input type="text" ng-model="birthdate" date-options="dateoptions" custom-datepicker/> <hr/> <pre>birthdate = {{birthdate}}</pre> <script type="text/ng-template" id="custom-datepicker.html"> <div class="enhanced-datepicker"> <div class="proxied-field-wrap"> <input type="text" ui-date-format="yy-mm-dd" ng-model="ngmodel" ui-date="dateoptions"/> </div> <label> <button class="btn" type="button"><i class="icon-calendar"></i>
Read more

javascript - jQuery date picker - Disable dates after the selection from the first date picker -

<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jquery ui datepicker - default functionality</title> <link rel="stylesheet" href="//code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css"> <script src="//code.jquery.com/jquery-1.10.2.js"></script> <script src="//code.jquery.com/ui/1.11.4/jquery-ui.js"></script> <link rel="stylesheet" href="/resources/demos/style.css"> <script> $(function () { $("#datepicker1").datepicker(); }); </script> <script> $(function () { $("#datepicker2").datepicker(); }); </script> </head> <body> <p>date 1: <input type="text" id="datepicker1"></p> <p>date 2: <input type="t
Read more