I want to retrieve columns name from table whose value is 1
My query is give below...
mysqli_query($conn,"SELECT * FROM `tbl_therapist_schedule` WHERE `schedule_date`='30.11.2017'");
My table structure is give below...
slot1 slot2 slot3
1 1 0
2 1 1
1 1 2
3 1 0
my result...
slot1 slot2 slot3
I have the serious feeling that your data is not normalized. Instead of having separate columns for each slot, I would store all this data in a single column with metadata to relate each slot's state.
That being said, one way to get the output you want would be to aggregate over each slot column and check for the presence/absence of at least one 1 value. I then use GROUP_CONCAT to generate a CSV list of matching slots.
SELECT GROUP_CONCAT(slots)
FROM
(
SELECT
CASE WHEN SUM(CASE WHEN slot1 = 1 THEN 1 ELSE 0 END) > 0
THEN 'slot1' END AS slots
FROM tbl_therapist_schedule
WHERE schedule_date = '30.11.2017'
UNION ALL
SELECT
CASE WHEN SUM(CASE WHEN slot2 = 1 THEN 1 ELSE 0 END) > 0
THEN 'slot2' END
FROM tbl_therapist_schedule
WHERE schedule_date = '30.11.2017'
UNION ALL
SELECT
CASE WHEN SUM(CASE WHEN slot3 = 1 THEN 1 ELSE 0 END) > 0
THEN 'slot3' END
FROM tbl_therapist_schedule
WHERE schedule_date = '30.11.2017'
) t;
Demo
Related
We have the table structure like
Fieldid userid data
41 2 1
12 2 0
41 3 1
12 3 1
We want the user which have (data=1 and filedid = 41) and (data = 0 and filedid=12)
We tried the query
select userid from table
where (data=1 and filedid = 41)
AND (data = 0 and filedid=12)
but it returns empty results.
Can anyone help how we will get the record using MySQL?
You can use grouping with a conditional aggregate in the HAVING clause:
SELECT userid
FROM mytable
GROUP BY userid
HAVING COUNT(CASE WHEN data = 1 AND FieldId = 1 THEN 1 END) >= 1 AND
COUNT(CASE WHEN data = 0 AND FieldId = 12 THEN 1 END) >= 1
you need to use union all like:
select * from table1 where Fieldid = 41 and data = 1 union all
select * from table1 where Fieldid = 12 and data = 0
attached image shows the output
Similar to #Giorgos, with multicolumn compare for conciseness:
select userid
from t
group by userid
having sum((data,fieldId) = (1, 41)) > 0
and sum((data,fieldId) = (0, 12)) > 0
When searching for results with one or another set of data you have to use OR keyword, not AND.
SELECT userid FROM table
WHERE (data = 1 AND filedid = 41)
OR (data = 0 AND filedid = 12)
Can't manage to come up with a correct query to compute the total no of students
I have three tables:
student - contains student profile either male or female
2.student_attendance - contains attendance details for whether a student was present a either "0" or "1"
attendance - contains all session details where by a one session can be attended by a number of students.
I need to calculate the number of boys/girls in present or absent for a session.
my major headache is to interpreate these logic to sql
if(in_attendace =1) then
sum the number of boys as boys_present
sum the number of girls as girls_present
else
sum the number of boys as boys_absent
sum the number of girls as girls_absent
# MY closest sql is its not working :(
select
case when a.in_attendance = 1 then
SUM(CASE b.gender when 1 then 1 else 0 end ) as male_present,
SUM(CASE b.gender when 2 then 1 else 0 end ) as female_present,
ELSE
SUM(CASE b.gender when 1 then 1 else 0 end ) as male_absent,
SUM(CASE b.gender when 2 then 1 else 0 end ) as female_absent
END
from attendance_student as a inner join student as b on a.student_id = b.id where a.session_details_id = 38
Well, you are not very far from the solution, you just need to separate them into different columns(I assume that's what you want) :
select COUNT(CASE WHEN a.in_attendance = 1 and b.gender = 1 then 1 END) as male_present,
COUNT(CASE WHEN a.in_attendance = 1 and b.gender = 2 then 1 END) as female_present,
COUNT(CASE WHEN a.in_attendance = 0 and b.gender = 1 then 1 END) as male_absent,
COUNT(CASE WHEN a.in_attendance = 0 and b.gender = 2 then 1 END) as female_absent
FROM attendance_student a
INNER JOIN student b
ON a.student_id = b.id
WHERE a.session_details_id = 38
I have a table like this. Now i want two sum(hour).. 1 for place_type '1' and another for place_type '2'. Is it possible in mysql?
Now my query is
SELECT sum(hour) as totalHour from category_data group by category_data.user_id
also tried with IF condition but not working
SELECT IF(place_type='1',sum(hour),0) home,
IF(place_type='2', sum(hour), 0) center,
from category_data group by category_data.user_id
user_id place_type hour
1 1 2
1 2 5
2 1 3
2 2 4
3 1 2
Thanks in advance
Conditional aggregation is what you need here.
select sum(case when place_type = 1 then `hour` end),
sum(case when place_type = 2 then `hour` end)
from category_data
Example fiddle
I have table for student attendance like below:
id | Present | date
1 | 1
1 | 0
1 | 1
1 | 1
1 | 0
Now I want to get the total days he is present via single query. Is it possible?
Below is the way I used to get the student present/absent count:
select count(*) from table where present =1
select count(*) from table where present =0
But I think can I get both from one query instead of two.
select sum(present = 1) as present1,
sum(present = 0) as present0
from table
You can use the following query:
select (select count(*) from table where present=1) as "present"
, (select count(*) from table where present=0) as "absent";
Try this its working fine :
SELECT SUM( present =1 ) AS present, SUM( present =0 ) AS absent
FROM details
WHERE id =1
Screenshot :
Try this :
For all student with group by
select id,present,absent from
(
select id,sum(case when present = 1 then 1 else 0 end) as present,
sum(case when present = 0 then 1 else 0 end) as absent
from table_name
group by id
) as absen
if you want to show only one student, just add where clause in the end like this :
select id,present,absent from
(
select id,sum(case when present = 1 then 1 else 0 end) as present,
sum(case when present = 0 then 1 else 0 end) as absent
from table_name
group by id
) as absen
where id = '1'
Hope this help you..
I have a table containing the following data columns:
ord_number check
OR123 0
OR125 1
OR123 2
OR123 0
OR124 0
OR124 0
OR125 0
OR123 0
The check column indicates if we have fully supplied the order line with a value of zero or below meaning 'yes we have supplied complete' and a value of 1 or above meaning 'no we have not supplied complete' .
To calculate an order fill rate (how many orders have been filled complete) I need to know how many of the orders have only zero check results for each entry and how many have at least one positive check result.
My logic is that I need to GROUP the items and then carry out a COUNTIF within the group (this may be the wrong SQL methodology but logically it makes sense to me in terms of the outcome I'm looking for). From this query I need to return those two values into my PHP script.
The results from this data set would be:
Complete = 1 (orders with only zero checks)
Incomplete = 2 (orders where one or more lines have positive checks)
I've spent the morning trying to find a solution but can't find anything that I either understand enough or is similar enough that I can break it down and understand it.
If someone can help me by pointing me in the right direction or can provide a sample with an explanation I would be very grateful.
For 1 row with 2 counter fields use:
SELECT
SUM(CASE WHEN `check` = 1 THEN 1 ELSE 0 END) AS incomplete,
SUM(CASE WHEN `check` = 0 THEN 1 ELSE 0 END) AS complete
FROM orders
For 2 rows with 1 name use:
SELECT COUNT(`ord_number`) AS fulfillment
FROM orders WHERE (`check`=0)
UNION SELECT COUNT(ord_number)
FROM orders WHERE (`check`=1)
in which case you need to put row 1 into $complete (check=0)
and row 2 into $incomplete (check=1)
you may add:
UNION SELECT COUNT(ord_number) FROM orders
which will give you the total records on row 3.
output will be:
SELECT * FROM orders
ord_number check
---------------------
OR123 0
OR124 1
OR125 0
OR126 0
OR127 0
OR123 0
OR125 1
SELECT COUNT(`ord_number`) AS counts FROM orders or1 WHERE (`check`=0)
UNION SELECT COUNT(ord_number) FROM orders or2 WHERE (`check`=1)
UNION SELECT COUNT(ord_number) FROM orders
counts
-------
5
2
7
SELECT
SUM(CASE WHEN `check` = 1 THEN 1 ELSE 0 END) AS incomplete,
SUM(CASE WHEN `check` = 0 THEN 1 ELSE 0 END) AS complete FROM orders
incomplete complete
-------------------------
2 5
As for PHP:
for 1 row:
mysql_select_db($database_test, $test);
$query_countIn1Row = " SELECT SUM(CASE WHEN `check` = 1 THEN 1 ELSE 0 END) AS
incomplete,
SUM(CASE WHEN `check` = 0 THEN 1 ELSE 0 END) AS complete
FROM orders";
$countIn1Row = mysql_query($query_countIn1Row, $test) or die(mysql_error());
do {
$varIncomplete = $row_countIn1Row['incomplete'];
$varComplete = $row_countIn1Row['complete'];
} while ($row_countIn1Row = mysql_fetch_assoc($countIn1Row));
and for 1 column with counts:
mysql_select_db($database_test, $test);
$query_countOrders = "SELECT COUNT(`ord_number`) AS counts
FROM orders or1 WHERE (`check`=0)
UNION SELECT COUNT(ord_number) FROM orders or2 WHERE (`check`=1)
UNION SELECT COUNT(ord_number) FROM orders";
$countOrders = mysql_query($query_countOrders, $test) or die(mysql_error());
$myCounts = array();
do {
$myCounts[]= $row_countOrders['counts'];
} while ($row_countOrders = mysql_fetch_assoc($countOrders));
$complete = $myCounts[0];
$incomplete = $myCounts[1];
$total = $myCounts[2];
SELECT ord_number,IF(MAX( check) <=0 ,'COMPLETED','PENDING')
from TABLENAME
group by (ord_number )
Through this oneline query you will easily get which order is in pending status and which one is complete status
AS per your given details
The check column indicates if we have fully supplied the order line
with a value of zero or below meaning 'yes we have supplied complete'
and a value of 1 or above meaning 'no we have not supplied complete' .
it means check column can contain negative value as well as 0 for indicating the complete status and 1 or any postive integer number to indicate the pending status.
so the logic should be find the max(check) so if the max for a order is found 0 or any negative number then we will sure that order is complete and if it found a positive number it means there was a pending entry.
You can do this in two steps:
SELECT ord_number,
SUM(CASE WHEN `check` = 0 THEN 1 ELSE 0 END) as Comp,
COUNT(`check`) as total
FROM tab1
GROUP BY ord_number
This would give you the number of rows with 0 (complete) and the total number of rows for each ord_number.
Then you do a COUNT to validate when those two are equal:
SELECT CASE WHEN comp = total THEN 'COMPLETE' ELSE 'INCOMPLETE' END AS status,
COUNT(*) AS statusCount
FROM(
SELECT ord_number,
SUM(CASE WHEN `check` = 0 THEN 1 ELSE 0 END) as Comp,
COUNT(`check`) as total
FROM tab1
GROUP BY ord_number) a
GROUP BY 1;
This should get you what you want.
sqlfiddle demo
Note that i used ` around check since this is a mysql reserved word