Question

I have this table :

+--------------+-----------------------------+----------------+
| Username     | Message                     | Status         |
+--------------+-----------------------------+----------------+
| jamesbond    | I need some help            | SendingOK      |
| jamesbond    | I need some help            | SendingOK      |
| jamesbond    | I need some help            | SendingFailed  |
| jamesbond    | Mission accomplished        | SendingOK      |
+--------------+-----------------------------+----------------+

produced by this SQL syntax :

SELECT A.Username, A.Message, B.Status
FROM db1.SmsBroadcast as A
INNER JOIN db2.sentitems as B 
ON A.MessageSMS1 = B.TextDecoded
WHERE A.Username = 'jamesbond'
GROUP BY Message, Status

now how to have this output?

+--------------+-----------------------------+-----------+---------------+
| Username     | Message                     | SendingOK | SendingFailed |
+--------------+-----------------------------+-----------+---------------+
| jamesbond    | I need some help            | 2         | 1             |
| jamesbond    | Mission accomplished        | 1         | 0             |
+--------------+-----------------------------+-----------+---------------+

SendingOK and SendingFailed column is actually can be calculated using COUNT(*), but I have no idea how to count based on same Message, while those message is executed in same SQL syntax. any idea how to do it?

Answer 1

You can simply use CASE in your SELECT statement and GROUPED them by username and message.

SELECT `UserName`, 
        `Message`,
        SUM(CASE WHEN `status` = 'SendingOK' THEN 1 ELSE 0 END) OkStat,
        SUM(CASE WHEN `status` = 'SendingFailed' THEN 1 ELSE 0 END) FailedStat
FROM    db1.SmsBroadcast as A
        JOIN db2.sentitems as B 
            ON A.MessageSMS1 = B.TextDecoded
WHERE   A.Username = 'jamesbond'
GROUP BY A.Username, A.Message