MySQL Count IF and JOIN - mysql

Question

I have two tables:
deskcases: | CaseID | Resolved At(Date) | Labels |
ringcentral: | Date | Type | Action Result |
My goal is to have the following output for the previous 7 days :
| Date | Count of TotalResolvedCases | Count of Total Calls |
I need to count the cases and calls in two separate tables then join and group the counts by the date. I'm also dealing with differing date formatting in the two tables, hence the wacky group by and join functions.
I also need to to have the join include all dates in the previous 7 days (deskcases has all dates so an INNER JOIN should work here I thought?)
To close, I've tried to run the following query below and it just churns with no result after a minute or two. Any idea on how to get this working? Thank you in advance for your help! :-)
(Running MySQL 5.0.96)
SELECT
DATE_FORMAT(
deskcases.`Resolved At`,
'%Y-%m-%d'
)AS Date1,
(
SELECT
COUNT(deskcases.`Case #`)
FROM
deskcases
WHERE
deskcases.Labels NOT LIKE '%SPAM%'
AND deskcases.Labels NOT LIKE '%Online Orders%'
AND deskcases.Labels NOT LIKE '%Internal SPAM%'
AND deskcases.`Resolved At` > NOW()- INTERVAL 8 DAY
)AS TotalResolvedCases,
(
SELECT
COUNT(ringcentral.Counter)
FROM
ringcentral
WHERE
`ringcentral`.`Type` = 'Voice'
AND `Action Result` = 'Accepted'
AND ringcentral.`Date` > NOW()- INTERVAL 8 DAY
)AS TotalCalls
FROM
deskcases
INNER JOIN ringcentral ON DATE_FORMAT(
deskcases.`Resolved At`,
'%Y-%m-%d'
)= ringcentral.Date
GROUP BY
Date1
ORDER BY
Date1 ASC
EDIT
I was able to edit this slightly to give me some result but it seems like I am counting ALL cases and calls with my sub-select queries and the totals are not being grouped by date. Here is the code:
SELECT
DATE_FORMAT(
deskcases.`Resolved At`,
'%Y-%m-%d'
)AS Date1,
(
SELECT
COUNT(deskcases.`Case #`)
FROM
deskcases
WHERE
deskcases.Labels NOT LIKE '%SPAM%'
AND deskcases.Labels NOT LIKE '%Online Orders%'
AND deskcases.`Case Status` LIKE '%Resolved%'
)AS TotalResolvedCases,
(
SELECT
COUNT(ringcentral.Counter)
FROM
ringcentral
WHERE
`ringcentral`.`Type` = 'Voice'
AND `Action Result` = 'Accepted'
)AS TotalCalls
FROM
deskcases
LEFT OUTER JOIN ringcentral ON DATE_FORMAT(
deskcases.`Resolved At`,
'%Y-%m-%d'
)= ringcentral.Date
WHERE deskcases.`Resolved At` > NOW()- INTERVAL 8 DAY
GROUP BY
Date1
ORDER BY
Date1 ASC

Answer 1

In this case you should definitely not join on date.
For example you may have this data:
deskcases ringcentral
--------- -----------
date | whatever_d date | whatever_r
---------------------- ----------------------
today x yesterday u
yesterday y
yesterday z
Now, when you join them you'll get this:
joinedTable
-----------
date | whatever_d | whatever_r
-------------------------------------
today x
yesterday y u
yesterday z u
Oops, you got 2 times an entry from ringtones table, but you wanted just 1.
So, how do you get your data? Either write 2 statements or combine them with UNION:
SELECT
DATE(`Resolved At`) AS Date1,
"Deskcases" AS fromTable,
COUNT(*) AS TotalNumber
FROM
deskcases
WHERE
deskcases.Labels NOT LIKE '%SPAM%'
AND deskcases.Labels NOT LIKE '%Online Orders%'
AND deskcases.Labels NOT LIKE '%Internal SPAM%'
AND deskcases.`Resolved At` > CURDATE()- INTERVAL 8 DAY
GROUP BY 1, 2
UNION ALL
SELECT
`Date` AS Date1,
"ringcentral" AS fromTable,
COUNT(*) AS TotalNumber
FROM
ringcentral
WHERE
`ringcentral`.`Type` = 'Voice'
AND `Action Result` = 'Accepted'
AND ringcentral.`Date` > CURDATE()- INTERVAL 8 DAY
GROUP BY 1, 2
Also note, that I changed NOW() to CURDATE(). In deskcases table your date column seems to be a timestamp. When you subtract 8 days from '2013-03-20 10:06:00' you'll get '2013-03-12 10:06:00' and therefore you'll be missing all rows between '2013-03-12 00:00:00' and '2013-03-12 10:05:59'. Also I just used the DATE() function instead of DATE_FORMAT(). DATE_FORMAT() is a really nice and useful function in many ways, but in this case you have to type less characters when using DATE() :)
UPDATE:
SELECT
Date1,
SUM(CASE WHEN fromTable = 'Deskcases' THEN TotalNumber ELSE 0 END) AS TotalDeskcases,
SUM(CASE WHEN fromTable = 'ringcentral' THEN TotalNumber ELSE 0 END) AS TotalRingcentral
FROM (
SELECT
DATE(`Resolved At`) AS Date1,
'Deskcases' AS fromTable,
COUNT(*) AS TotalNumber
FROM
deskcases
WHERE
deskcases.Labels NOT LIKE '%SPAM%'
AND deskcases.Labels NOT LIKE '%Online Orders%'
AND deskcases.Labels NOT LIKE '%Internal SPAM%'
AND deskcases.`Resolved At` > CURDATE()- INTERVAL 8 DAY
GROUP BY 1, 2
UNION ALL
SELECT
`Date` AS Date1,
'ringcentral' AS fromTable,
COUNT(*) AS TotalNumber
FROM
ringcentral
WHERE
`ringcentral`.`Type` = 'Voice'
AND `Action Result` = 'Accepted'
AND ringcentral.`Date` > CURDATE()- INTERVAL 8 DAY
GROUP BY 1, 2
) sq
GROUP BY Date1