Problem with the syntax of join! !

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SQL-Server-2012

Hi All
i have the following queries which needs to be joined on JOB_NAME key field:-
Query1:-

SQL

Select JOB_NAME,STATUS,Count(JOB_NAME) as Fail_Count from COMP_HIS_TBL A where STATUS = 'Failure' Group By JOB_NAME,STATUS

Query2:-

SQL

Select JOB_NAME,STATUS,Count(JOB_NAME) as OverallCount from COMP_HIS_TBL 
Group By JOB_NAME,STATUS

Both Fail_Count and OverallCount are the custom added fields.Need to join the above two tables,used the following join statement:-

What I have tried:

SQL

Select A.JOB_NAME,A.STATUS,Count(A.JOB_NAME) as Fail_Count from COMP_HIS_TBL A  JOIN
(Select JOB_NAME,STATUS,Count(JOB_NAME) as OverallCount from COMP_HIS_TBL 
Group By JOB_NAME,STATUS) B
On 
A.JOB_NAME=B.JOB_NAME
Where A.STATUS = 'Failure'
Group By A.JOB_NAME,A.STATUS

However the OverallCount is missing from my output?Need help regarding this:(

Posted 9-May-16 3:57am

mousau

Updated 9-May-16 4:14am

v2

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Comments

F-ES Sitecore 9-May-16 10:02am

Consult on-line documentation for SELECT syntax. You do your table joins first and then your group by statements. You don't group by on a join

select fields from table1
join table2 on ...
join table3 on ...
where field1 = somevalue
group by field1, field2

https://msdn.microsoft.com/en-us/library/ms189499.aspx

mousau 9-May-16 10:17am

Hi
Thanks a lot.I saw and modified the syntax acccordinlgy.
Thank you

1 solution

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Richard Deeming · Accepted Answer · 2016-05-09T04:13:00

Solution 1

In this case, you don't even need a JOIN:

SQL

SELECT
    JOB_NAME,
    SUM(CASE Status WHEN 'Failure' THEN 1 ELSE 0 END) As Fail_Count,
    COUNT(JOB_NAME) As OverallCount
FROM
    COMP_HIS_TBL
GROUP BY
    JOB_NAME
;

Posted 9-May-16 4:13am

Richard Deeming

Comments

mousau 9-May-16 10:16am

Hi Richard
Thanks a lot for your solution.Really thanks.Its working. After this I tried using the following query but its showing incorrect syntax:(

Select JOB_NAME,(Count(Fail_Count)/Count(OverallCount))*100 as Fail_percent,STATUS from COMP_HIS_TBL
where Fail_Count,OverallCount in (SELECT
JOB_NAME,
SUM(CASE Status WHEN 'Failure' THEN 1 ELSE 0 END) As Fail_Count,
COUNT(JOB_NAME) As OverallCount
FROM
COMP_HIS_TBL
GROUP BY
JOB_NAME)

Moumita