mysql - SQL query: how to group items correctly? -


could please modify following sql query work in mysql? currently, error message table t1 doesn't exist. table columns "post_title", "name1", "url1".

if helps query can tested on wordpress cms database

select t1.post_title,        (select meta_value t1 t1.meta_key='name1_class' limit 1) name1,        (select meta_value t1 t1.meta_key='url1_class' limit 1) url1   (select pm.post_id id, pm.meta_key, pm.meta_value, p.post_title, t.slug wp_2_postmeta pm     inner join wp_2_posts p on pm.post_id = p.id     inner join wp_2_term_relationships tr on tr.object_id = p.id         inner join wp_2_term_taxonomy tt on tr.term_taxonomy_id = tt.term_taxonomy_id     inner join wp_2_terms t on t.term_id = tt.term_id     post_type='footercolumn' , post_status='publish' , pm.meta_key '%class') t1

the subquery t1 table in "from" clause produces dataset this:

'id', 'meta_key',  'meta_value', 'post_title', 'slug'  '18', 'name1_class', 'our work', 'who are', 'column1'  '18', 'url1_class', '/work.html', 'who are', 'column1'  '18', 'name1_class', 'our team', 'about', 'column2'  '18', 'url1_class', 'team.html', 'about', 'column2

i result table be:

'title',      'name1',     'url1' 'who are', 'our work',  'work.html' 'about',      'our team',  'team.html'

thanks

looks you're trying emulate cte (common table expression) using subselects, can't quite think of way make work.

the news if can use aggregate find data, don't need subselect.

select t1.post_title,        max(case when meta_key='name1_class' meta_value end) name1,        max(case when meta_key='url1_class' meta_value end) url1   (select pm.post_id id, pm.meta_key, pm.meta_value, p.post_title, t.slug          wp_2_postmeta pm         inner join wp_2_posts p on pm.post_id = p.id         inner join wp_2_term_relationships tr on tr.object_id = p.id             inner join wp_2_term_taxonomy tt             on tr.term_taxonomy_id = tt.term_taxonomy_id         inner join wp_2_terms t on t.term_id = tt.term_id         post_type='footercolumn' , post_status='publish' , pm.meta_key                '%class') t1

Comments

Post a Comment

Popular posts from this blog

php - cannot display multiple markers in google maps v3 from traceroute result -

i'm newbie in php mysql , google maps v3. have problems in google maps v3. made traceroute web based , map traceroute's result in google maps v3 final project of college education. have try many tutorials didn't work. have tried tutorials in forum nothing worked. problem cannot display multiple markers got location data database. maybe because i'm newbie , not know how do. confuse looping show markers. here code <?php error_reporting(e_all ^ (e_notice)); ini_set('max_execution_time', 360); $enable_log_user = false; global $ip, $host_name, $host_ip; $host = @$_post['host']; $trace = @$_post['trace']; $self = $_server['php_self']; include("phpsqlajax_dbinfo.php"); $connection = mysql_connect ('127.0.0.1', $username, $password); if (!$connection) { die('not connected : ' . mysql_error());} $db_selected = mysql_select_db($database, $connection); if (!$db_selected) { die ('can\'t use db :
Read more

c# - DetailsView in ASP.Net - How to add another column on the side/add a control in each row? -

i have detailsview control on page used edit various fields of record, works in respect. i looking way add 1 column (and if works, why not more) right, absolutely read-only, show same fields of record comparison purposes. i aware there no obvious way such thing out of box detailsview . have looked other controls (transposed gridview , recommended formview , listview ), nothing satisfies. have special data binding setup using detailsview , can't out of without losing features. anyone on how "hack in" additional columns (for display only) on detailsview ? the solution have now, use second detailsview , visible set false in aspx. in code, make sure databind hidden detailsview hosts data third column first, initial detailsview named itemdetails . and in item created event, pass third column html rendering of hidden controls (in last code block) : protected void itemdetails_itemcreated(object sender, eventargs e) { if (dataite
Read more

javascript - firefox memory leak -

i have following script (i use raphaeljs also) draws circle, waits 1 second, draws circle again, etc (you can copy paste - functional, need include raphael raphaeljs.com): <div id="holder"> </div> <script src="raphael.js" type="text/javascript"></script> <script> var paper = raphael(10, 50, 320, 200); var rad = math.pi / 180; var finangle = 0; function sector(cx, cy, r, startangle, endangle, params) { var x1 = cx + r * math.cos(-startangle * rad), x2 = cx + r * math.cos(-endangle * rad), y1 = cy + r * math.sin(-startangle * rad), y2 = cy + r * math.sin(-endangle * rad); return ["m", cx, cy, "l", x1, y1, "a", r, r, 0, +(endangle - startangle > 180), 0, x2, y2]; } var path = sector(100,100,50,0,180); var arc = paper.path(path); function draw() { path = sector(100,100,50,0,finangle);
Read more