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Select count of subquery results, along with another field


By : Utkarsh Binay
Date : October 18 2020, 08:10 PM
I hope this helps you . It's possible (and easiest) to do this with a window function. Taking your initial query and ignoring the specifics of what's in the middle of it:
code :
SELECT s.id, s.total_item_count
FROM (
    SELECT DISTINCT ON (work_items.id) work_items.id
     , work_item_states.id AS work_item_states_id
     , count(work_items.id) over () as total_item_count
    FROM work_items
    JOIN work_item_states ON work_item_states.work_item_refer = work_items.id
    WHERE work_item_states.disposition = 'cancelled'
    ORDER BY work_items.id
) AS s
ORDER BY s.work_item_states_id DESC
LIMIT 50
OFFSET 0


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Select Max Data from Subquery SQL, but it Show All Results from Subquery


By : 韩清无
Date : March 29 2020, 07:55 AM
should help you out , 1st solution using where condition:
code :
SELECT t1.valuesum, t1.codebook
FROM (
        SELECT SUM( s.value ) AS valuesum, s.codebook
        FROM stock s
        GROUP BY s.codebook
     ) t1
WHERE t1.valuesum in (SELECT MAX( t2.valuesum ) AS total
                     FROM (
                             SELECT SUM( s2.value ) AS valuesum, s2.codebook
                             FROM stock s2
                             GROUP BY s2.codebook
                           )t2
                     ) 
SELECT max(t1.valuesum), t1.codebook
FROM (
        SELECT SUM( s.value ) AS valuesum, s.codebook
        FROM stock s
        GROUP BY s.codebook
     ) t1
GROUP BY t1.codebook
HAVING max(t1.valuesum) = (SELECT MAX( t2.valuesum ) AS total
                     FROM (
                             SELECT SUM( s2.value ) AS valuesum, s2.codebook
                             FROM stock s2
                             GROUP BY s2.codebook
                           )t2
                     )

How can I select the count of rows as a subquery of results from main query


By : San Blas Islands
Date : March 29 2020, 07:55 AM
it fixes the issue I am trying to gather the amount of items at a place only if the WHERE places.x < 5 is true. The reason for this, is that both the at_places and places tables contains tens of thousands of rows. , You might find that an explicit join works better:
code :
select p.id, p.name, ap.cnt
from places p join
     (select ap.places_id, count(*) as cnt from at_places ap group by ap.places_id) ap
     on p.id = ap.places_id
where p.x < 5

Subquery not producing expected results (SELECT DISTINCT and COUNT)


By : Devraj Bhandari
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Provided what others have said is true (you should add sample data and expected output), you don't seem to need that inner query, you can achieve the same with
code :
select  Z4BSN2,
        count(Z4RMID) 
from    ZWE944
where   Z4RYMD = 170505
group by Z4BSN2

MySQL subquery to count average of select field


By : Ebn Sina
Date : March 29 2020, 07:55 AM
To fix this issue You can use a derived table that contains the information you want, i.e. count per language, and join your table to it:
code :
SELECT u.user_id, u.language, 
       c.cnt_per_language as count,
       (c.cnt_per_language / t.total) * 100 AS percentage 
FROM users u
INNER JOIN (
   SELECT count(*) AS cnt_per_language, language  
   FROM users 
   GROUP BY language
) AS c ON u.language = c.language
CROSS JOIN (SELECT count(*) AS total FROM users) AS t

How do I select the Count(*) of an nHibernate Subquery's results


By : user3736211
Date : March 29 2020, 07:55 AM
I wish this helpful for you I need to do the following for the purposes of paging a query in nHibernate: , NHibernate 3.0 allows Linq query.
Try this
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