Mysql group by with normal column and mysql function aliases column - mysql

Question

I have been trying to group by the mysql group by in normal column and mysql function aliases column where the mysql function aliases wont work group by
The query i tried and which should work according to the mysql documentation.
SELECT `project`.`project_name`, SUM(cost_allocated) AS cost_allocated,
count(task_id) as countTask,
GROUP_CONCAT(task_registration.members SEPARATOR ';') AS members,
GROUP_CONCAT(task_registration.indicators SEPARATOR ';') AS indicators,
GROUP_CONCAT(task_registration.percent_complete SEPARATOR ';') AS percent_complete,
GROUP_CONCAT(task_registration.status SEPARATOR ';') AS status,
DATE_FORMAT(`task_registration`.`created_at`, '%M') AS month
FROM (`project`)
INNER JOIN `task_registration` ON `task_registration`.`project` = `project`.`project_id`
GROUP BY `task_registration`.`project`,`month`
ORDER BY `project`.`project_id` desc
The result i get
Now after removing the normal column group by and just adding mysql function aliases column it works fine but i need both
SELECT `project`.`project_name`, SUM(cost_allocated) AS cost_allocated,
count(task_id) as countTask,
GROUP_CONCAT(task_registration.members SEPARATOR ';') AS members,
GROUP_CONCAT(task_registration.indicators SEPARATOR ';') AS indicators,
GROUP_CONCAT(task_registration.percent_complete SEPARATOR ';') AS percent_complete,
GROUP_CONCAT(task_registration.status SEPARATOR ';') AS status,
DATE_FORMAT(`task_registration`.`created_at`, '%M') AS month
FROM (`project`)
INNER JOIN `task_registration` ON `task_registration`.`project` = `project`.`project_id`
GROUP BY `month`
ORDER BY `project`.`project_id` desc
after removing task_registration`.`project from group by
GROUP BY `task_registration`.`project`,`month` Doesnt work in this case
http://sqlfiddle.com/#!2/18389/2 i have tried this so far

Answer 1

Very difficult to work out what you want without table declarations, sample input data and sample output data, but from your comment all I can suggest is using the 2nd query as a sub query and joining it to the results of the first query:-
SELECT project.project_name,
SUM(cost_allocated) AS cost_allocated,
count(task_id) as countTask,
GROUP_CONCAT(task_registration.members SEPARATOR ';') AS members,
GROUP_CONCAT(task_registration.indicators SEPARATOR ';') AS indicators,
GROUP_CONCAT(task_registration.percent_complete SEPARATOR ';') AS percent_complete,
GROUP_CONCAT(task_registration.status SEPARATOR ';') AS status,
DATE_FORMAT(task_registration.created_at, '%M') AS month,
sub0.cost_allocated AS months_cost_allocated,
sub0.countTask AS months_countTask,
sub0.members AS months_members,
sub0.indicators AS months_indicators,
sub0.percent_complete AS months_percent_complete,
sub0.status AS months_status
FROM (`project`)
INNER JOIN `task_registration` ON `task_registration`.`project` = `project`.`project_id`
INNER JOIN
(
SELECT DATE_FORMAT(task_registration.created_at, '%M') AS month,
SUM(cost_allocated) AS cost_allocated,
COUNT(task_id) as countTask,
GROUP_CONCAT(task_registration.members SEPARATOR ';') AS members,
GROUP_CONCAT(task_registration.indicators SEPARATOR ';') AS indicators,
GROUP_CONCAT(task_registration.percent_complete SEPARATOR ';') AS percent_complete,
GROUP_CONCAT(task_registration.status SEPARATOR ';') AS status
FROM (project)
INNER JOIN task_registration ON task_registration.project = project.project_id
GROUP BY `month`
) sub0
ON DATE_FORMAT(task_registration.created_at, '%M') = sub0.`month`
GROUP BY task_registration.project,
`month`,
months_cost_allocated,
sub0.countTask AS months_countTask,
sub0.members AS months_members,
sub0.indicators AS months_indicators,
sub0.percent_complete AS months_percent_complete,
sub0.status AS months_status
ORDER BY project.project_id desc

Answer 2

Thank you for the answer i did it on my own
SELECT COUNT( i.project_name ) AS completed_projects,i.month
FROM (
SELECT `project`.`project_name` , SUM( cost_allocated ) AS cost_allocated, COUNT( task_id ) AS countTask, GROUP_CONCAT( task_registration.members
SEPARATOR ';' ) AS members, GROUP_CONCAT( task_registration.indicators
SEPARATOR ';' ) AS indicators, GROUP_CONCAT( task_registration.percent_complete
SEPARATOR ';' ) AS percent_complete, GROUP_CONCAT( task_registration.status
SEPARATOR ';' ) AS
STATUS , DATE_FORMAT( task_registration.created_at, '%M' ) AS
MONTH FROM (
`project`
)
INNER JOIN `task_registration` ON `task_registration`.`project` = `project`.`project_id`
GROUP BY `task_registration`.`project`
ORDER BY `project`.`project_id` DESC
) AS i
GROUP BY i.month
http://sqlfiddle.com/#!2/18389/11