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Combining query results into one


By : CYoung
Date : September 15 2020, 10:00 AM
To fix the issue you can do I am trying to return 4 calculations into one table that would be the result , The easiest would be to use union all:
code :
SELECT "new account" as usage_bucket, count(*) as num_active_trials
FROM teams_trial teams
WHERE teams.user_id not in (select user_id from user_space_snapshot) and DATEADD(DAY, -30, GETDATE()) < teams.created_day

union all

SELECT "under limit" as usage_bucket, count(*) as num_active_trials
FROM user_space_snapshot u INNER JOIN trial_teams t ON (t.user_id = u.user_id)
WHERE DATEADD(DAY, -30, GETDATE()) < t.created_day AND u.space_used/u.space_limit < 0.9 

union all

SELECT "near limit" as usage_bucket, count(*) as num_active_trials
FROM user_space_snapshot u INNER JOIN trial_teams t ON (t.user_id = u.user_id)
WHERE DATEADD(DAY, -30, GETDATE()) < t.created_day AND u.space_used/u.space_limit between 0.9 and 1

union all

SELECT  "over limit" as usage_bucket, count(*) as num_active_trials
FROM user_space_snapshot u INNER JOIN trial_teams t ON (t.user_id = u.user_id)
WHERE DATEADD(DAY, -30, GETDATE()) < t.created_day AND u.space_used/u.space_limit > 1


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Combining query results


By : user3048201
Date : March 29 2020, 07:55 AM
Hope this helps If you use a UNION you would be able to add in a extra field which is the 'type' (i.e. 0 = Blog, 1 = Music, etc.)
Then on the front end of the application retrieve data from that field and then use that to decide what type it actually is / which elements to include.

Combining the results of two tables in one query


By : Darshana
Date : March 29 2020, 07:55 AM
will help you It is not the job of your DBMS to format your data the way you'd like them to look, but the application langage's. Therefore, query your database with the first query you posted and use whatever language you're using to format it the way you want.
If you want to make a JOIN with another table, you have to specify conditions. If you'd just like to make a cartesian product, you can use a CROSS JOIN :
code :
SELECT Id, Category, Name, Dosage
FROM MedicationCombination
CROSS JOIN Medication
WHERE MedicationId = 2

Combining two query results - php, mysql


By : Lý Thiên Hương
Date : March 29 2020, 07:55 AM
To fix this issue Edited answer deceze suggested a UNION in the comments which i think should work fine, try:
code :
$query = "(SELECT *, 1 as SORY_QUERY1 FROM birds where breed = '".$row['breed']."' and wing_span = '".$row['wing_span']."' and id != '".$row['id']."') UNION (SELECT *, 2 FROM birds where breed = '".$row['breed']."' and id != '".$row['id']."') ORDER BY SORY_QUERY1 LIMIT 0, 4";

$theArray = mysql_fetch_array($s_query);

var_dump($theArray); //to debug
$theArray[] = $row5;
array_push($theArray, $row5);

combining two query results into one and using the results to compute another column


By : M M
Date : March 29 2020, 07:55 AM
Does that help Query 1 returns one number AveSpace i.e. 100 , Treat each individual query as a subquery then compute the results:
code :
SELECT a.AveSpace, b.TotalSpace, (CAST(a.AveSpace AS float) / CAST(b.TotalSpace AS float)) as UnitSpace
FROM 
    (
        SELECT TOP 1 AVG(spaceusage) as AveSpace FROM (SELECT TOP 5 * FROM Employee ORDER BY date DESC)
    ) a,
    (
         SELECT TOP 1 TotalSpace FROM SpaceTable ORDER BY date
    ) b

Combining several query results into one table, how is the results order determined?


By : user3826908
Date : March 29 2020, 07:55 AM
Hope this helps The SQL standard does not guarantee an order unless explicitly called for in an order by clause. In practice, this usually comes back chronologically, but I would not rely on it if the order is important.
Across a union you can control the order like this...
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