I have a MySQL table with the following structure:
| id | date | type | user | approved |
======================================================
| 1 | 2015-01-30 20:32:01 | 2 | 1 | 0 |
| 2 | 2015-01-31 19:40:12 | 1 | 2 | 1 |
| 3 | 2015-02-01 11:12:08 | 2 | 1 | 0 |
| 4 | 2015-02-01 11:32:13 | 4 | 3 | 1 |
| 5 | 2015-02-01 17:25:22 | 6 | 2 | 1 |
I now would like to cumulate the times a task was approved (1) for each user. This is what the result should be:
user 1 --> 0
user 2 --> 2
user 3 --> 1
Is there a way to accomplish this by a single SQL query or would I need to do this outside of MySQL in my php script?
you can just group and summarize values:
select user, sum(approved)
from table
group by user
Related
I have 3 tables: shows, seasons and ratings. I would like to get average ratings of specific seasons and then make an average of this for every show and sort them by this value asc or desc. I was able to get this result by this raw query:
$shows = Show::selectRaw('shows.*, avg(x.seasons_avg_points) as ratings_avg_points')
->fromSub(function($query){
$query->selectRaw('shows.id, avg(ratings.points) as seasons_avg_points')
->from('shows')
->join('seasons', 'shows.id', '=', 'seasons.show_id')
->leftJoin('ratings', 'ratings.item_id', '=', 'seasons.item_id')
->groupBy('seasons.id');
}, 'x')
->join('shows', 'shows.id', '=', 'x.id')
->groupBy('x.id')
->get()->sortBy('shows_avg_points');
However I prefer to use Laravel eloquent functions so I tried also this:
$shows = Show::with(['seasons' => function($query){
$query->withAvg('ratings', 'points');
}])->withAvg('seasons', 'ratings_avg_points')->get();
Unfortunately, it only works without ->withAvg('seasons', 'ratings_avg_points'), as there can't be made an average of a computed column (ratings_avg_points) and it can't be found.
shows
| id | name |
|----|--------|
| 1 | show 1 |
| 2 | show 2 |
| 3 | show 3 |
seasons
| id | show_id | item_id | name |
|----|---------|---------|----------|
| 1 | 1 | 1 | season 1 |
| 2 | 1 | 2 | season 2 |
| 3 | 2 | 3 | season 1 |
| 4 | 2 | 4 | season 2 |
| 5 | 3 | 5 | season 1 |
| 6 | 3 | 6 | season 2 |
ratings
| id | item_id | points |
|----|---------|--------|
| 1 | 1 | 0 |
| 2 | 1 | 20 |
| 3 | 2 | 0 |
| 4 | 2 | 30 |
| 5 | 3 | 0 |
| 6 | 3 | 40 |
| 7 | 4 | 0 |
| 8 | 4 | 50 |
| 9 | 5 | 0 |
| 10 | 5 | 60 |
| 11 | 6 | 0 |
| 12 | 6 | 70 |
result
| id | name | ratings_avg_points|
|----|--------|-------------------|
| 3 | show 3 | 32.5 |
| 2 | show 2 | 22.5 |
| 1 | show 1 | 12.5 |
Is there a way I can get Show models with their average rating values without using that 'ugly' query above?
I have the following 3 tables: unit, stage, stats.
unit stage
+----+--------+ +----+-------+---------------------+
| id | status | | id |unit_id| date |
+----+--------+ +----+-------+---------------------+
| 1 | 2 | | 1 | 2 | 2013-11-22 00:00:00 |
| 2 | 3 | | 2 | 2 | 2013-11-26 12:00:00 |
| 3 | 3 | | 3 | 3 | 2013-10-11 00:00:00 |
| 4 | 0 | | 4 | 1 | 2013-12-29 00:00:00 |
+----+--------+ +----+-------+---------------------+
stats
+----+----------+---------------------+-------+
| id | stage_id | date | clicks|
+----+----------+---------------------+-------+
| 1 | 1 | 2013-11-22 00:00:00 | 10 |
| 2 | 1 | 2013-11-23 00:00:00 | 20 |
| 3 | 1 | 2013-11-24 00:00:00 | 25 |
| 4 | 2 | 2013-11-26 00:00:00 | 15 |
| 5 | 2 | 2013-11-27 12:00:00 | 21 |
| 6 | 3 | 2013-12-29 00:00:00 | 8 |
+----+----------+---------------------+-------+
I need a request, that will produce the following response:
+---------+---------------------+-----------------------+
| unit.id | stage.min.date | sum(stats.max.clicks) |
+---------+---------------------+-----------------------+
| 2 | 2013-11-22 00:00:00 | 46 |
| 3 | 2013-12-29 00:00:00 | 8 |
+---------+---------------------+-----------------------+
by the following rules:
1) unit.id - show only units with unit.status=3
2) stage.min.date - minimal stage.date for corresponding unit_id
3) sum(stats.max.clicks) - sum of stats.clicks with max dvalues for each stage_id associated with corresponding unit_id. In my example 46 = 25(stage_id=1) + 21(stage_id=2)
The problem is in min.date and sum of clicks - I have no idea how to get it in one query. Definitely it`s not a problem to do it using php code and several requests.
Schema in SQL Fiddle
Thanks in advance.
I just ask myself, why I do this? Your example resonse has an error, and does not match your fiddle... but:
SELECT
cc.unit_id, MIN(cc.date) as stage_min_date , SUM(dd.clicks) as stats_max_clicks
FROM
stage cc
LEFT JOIN (
SELECT
bb.stage_id, bb.clicks
FROM
stats bb LEFT JOIN (
SELECT id, stage_id, MAX(date) AS max_date
FROM stats
GROUP BY stage_id
) aa
ON
aa.max_date = bb.date
WHERE
aa.max_date IS NOT NULL
) dd
ON cc.id = dd.stage_id
LEFT JOIN unit ee
ON ee.id = cc.unit_id
WHERE ee.status = 3
GROUP BY cc.unit_id
...
I want to concatenate and count data of the same column, so I can concatenate but I can not count the repeated data.
Here's my table of data:
| ID | bills | class |
|-----|-------|-------|
| 1 | 0.5 | 2 |
| 2 | 1 | 1 |
| 3 | 0.5 | 2 |
| 5 | 1 | 3 |
| 6 | 0 | 2 |
| 7 | 0.5 | 1 |
| 8 | 1 | 2 |
| 9 | 1 | 3 |
| 10 | 0.5 | 1 |
| 11 | 0 | 2 |
| 12 | 1 | 1 |
| 13 | 0 | 3 |
| 14 | 1 | 2 |
| 15 | 0 | 1 |
| 16 | 0 | 1 |
| 17 | 0.5 | 3 |
| 18 | 0 | 3 |
| 13 | 0.5 | 3 |
Here's my sql query I'm using to concatenate data:
SELECT class AS lesson,
GROUP_CONCAT( bills ORDER BY bills ) AS bills
FROM tb_presence
GROUP BY class;
Here's my result below:
| class | bills |
|-------|------------------|
| 1 | 1,0.5,0.5,1,0,0 |
| 2 | 0.5,0,1,0,1 |
| 3 | 1,1,0,0.5,0,0.5 |
Now I would like to count the data that are equal, but continue with the same concatenation.
I want to "count" the data with the same values and display concatenated (column observation and only to help understanding)
| class | bills | observation |
|-------|-------|-----------------------------|
| 1 | 2,2,2 | (2=0+0) (2=0.5+0.5) (2=1+1) |
| 2 | 2,1,2 | (2=0+0) (1=0.5) (2=1+1) |
| 3 | 2,2,2 | (2=0+0) (2=0.5+0.5) (2=1+1) |
Is this really possible?
Here is a solution (thanks to #wchiquito for the sqlfiddle) See http://sqlfiddle.com/#!2/2d2c8/1
As you can see it cannot dynamically determine the bills' values and count them. But there is a count per bill value that you want.
SELECT class AS lesson,
GROUP_CONCAT( bills ORDER BY bills ) AS bills
,SUM(IF(bills=0,1,0)) AS Count0
,SUM(IF(bills=0.5,1,0)) AS Count05
,SUM(IF(bills=1,1,0)) AS Count1
,COUNT(*) AS totalRecords
,COUNT(*)
- SUM(IF(bills=0,1,0))
- SUM(IF(bills=0.5,1,0))
- SUM(IF(bills=1,1,0))
AS Missing
FROM tb_presence GROUP BY class;
I added an extra record to show how the 'missing' column could show if you were not taking all values into consideration.
Results
| LESSON | BILLS | COUNT0 | COUNT05 | COUNT1 | TOTALRECORDS | MISSING |
|--------|-----------------------------------------|--------|---------|--------|--------------|---------|
| 1 | 0.00,0.00,0.50,0.50,1.00,1.00,1.00,4.00 | 2 | 2 | 3 | 8 | 1 |
| 2 | 0.00,0.00,0.50,0.50,1.00,1.00 | 2 | 2 | 2 | 6 | 0 |
| 3 | 0.00,0.00,0.50,0.50,1.00,1.00 | 2 | 2 | 2 | 6 | 0 |
Would like to get the following as a result from the table structure below (MYSQL + PHP)
array[0][name]1,[desc]red,[title]hero,[desc]strong,[desc2]smells,[img][0]red1,[img][1]red2,[img][2]red3,ext[0].jpg,[ext][1].gif,[ext][2].png,[count][0]253,[count][1]211,[count][2]21,[count][3]121,[dist][0]5,[dist][1]5,[dist][2]12,[dist][3]2,[score][0]2,[score][1]3,[score][2]1,[score][3]5,[score][4]4,[val][0]5,[val][1]1,[val][2]4,[val][3]3,[val][4]4
The problem I have with a simple SELECT, JOIN and GROUP_CONCAT is that the values duplicate after selecting all the images.
I've tried various other ways for example selecting the data by row combined with a foreach loop in PHP, but I end up with lots of duplicates, and it looks very messy.
I also though about splitting it into multiple selects instead of using one, but I really would like to know if it can be done with one select.
Could someone help me with an MYSQL select? Thanks
game
+-----+----------+
| pid | name |
+-----+----------+
| 1 | red |
| 2 | green |
| 3 | blue |
+-----+----------+
detail
+-----+------+--------+-------+--------+
| id | pid | title | desc | desc 2 |
+-----+------+--------+-------+--------+
| 1 | 1 | hero |strong | smells |
| 2 | 2 | prince |nice | tall |
| 3 | 3 | dragon |big | green |
+-----+------+--------+-------+--------+
image
+-----+-----+-----+----+
| id | pid | img |ext |
+-----+-----+-----+----+
| 1 | 1 | red1|.jpg|
| 2 | 1 | red2|.gif|
| 3 | 1 | red3|.png|
+-----+-----+-----+----+
devmap
+-----+-----+-------+------+
| id | pid | count | dist |
+-----+-----+-------+------+
| 1 | 1 | 253 | 5 |
| 2 | 1 | 211 | 5 |
| 3 | 1 | 21 | 12 |
| 4 | 1 | 121 | 2 |
+-----+-----+-------+------+
stats
+-----+-----+-------+------+
| id | pid | scrore| val |
+-----+-----+-------+------+
| 1 | 1 | 2 | 5 |
| 2 | 1 | 3 | 1 |
| 3 | 1 | 1 | 4 |
| 4 | 1 | 5 | 3 |
| 5 | 1 | 4 | 3 |
+-----+-----+-------+------+
When you do a JOIN that involves more than a 1:1 mapping between tables you're going to have duplicate data, and there's no way to get around that in the query.
You can break it out into multiple selects, or you can loop through the result set and pare out whatever duplicate information you don't want.
tbl_pack_service;
+-------+---------+------------+
| ps_id | pack_id | service_id |
+-------+---------+------------+
| 1 | 1 | 1 |
| 2 | 1 | 2 |
| 3 | 2 | 1 |
| 4 | 2 | 2 |
| 5 | 2 | 3 |
| 6 | 2 | 4 |
| 7 | 2 | 5 |
| 8 | 3 | 1 |
| 9 | 3 | 2 |
| 10 | 3 | 3 |
| 11 | 3 | 4 |
+-------+---------+------------+
ps_id is primary key
i am tying to make dynamic select list in php
i want a mysql query that can give service id which do not match with particular pack_id
like i have service_id 1,2,3,4,5
when i should select pack_id=1 then 3,4,5 should be displayed
and when i should select pack_id=2 then nothing should be displayed as it has all the 5 services.
thanks..
There are a few ways to handle this. The easiest is with a NOT IN subquery:
SELECT DISTINCT service_id
FROM
tbl_pack_service
WHERE service_id NOT IN (SELECT service_id FROM tbl_pack_service WHERE pack_id = 1)