I am trying to get the rows where id are not in a list.
I have email with scores with several email for each score. I know how to get the max score for each email then I want to delete other rows. I try to delete all rows that are not in the list of max score but it does not work.
SELECT *
FROM mkgaction AS a
WHERE id NOT IN (SELECT id
FROM
(SELECT *
FROM mkgaction AS b
ORDER BY `score` DESC) x
GROUP BY `score`)
The select id returns me the right list but the all request returns me no line...
Do you know why?
Presumably -- if your query works at all -- you are using MySQL. The syntax in that database is:
delete ma
from mkgaction ma join
(select ma2.email, max(ma2.score) as max_score
from mkgaction ma2
group by ma2.email
) ma2
on ma.email = ma2.email and ma.score < ma2.max_score;
Related
scenario 1:
I have two tables INFUSION_APP_APPOINTMENT,INFUSION_APP_NURSE_NOTES where
INFUSION_APP_NURSE_NOTES.APPOINTMENT_ID=INFUSION_APP_APPOINTMENT.ID and i want to find out the INFUSION_APP_NURSE_NOTES.ID's where INFUSION_APP_NURSE_NOTES.APPOINTMENT_ID is same.
for eg. if the INFUSION_APP_NURSE_NOTES.APPOINTMENT_ID = 1 and INFUSION_APP_NURSE_NOTES.ID is 12,15,78, then i want to display all the
INFUSION_APP_NURSE_NOTES.ID's where INFUSION_APP_NURSE_NOTES.APPOINTMENT_ID =1.
i use below script
SELECT INFUSION_APP_NURSE_NOTES.APPOINTMENT_ID,INFUSION_APP_NURSE_NOTES.ID
FROM INFUSION_APP_NURSE_NOTES
GROUP BY INFUSION_APP_NURSE_NOTES.APPOINTMENT_ID,INFUSION_APP_NURSE_NOTES.ID
HAVING COUNT(INFUSION_APP_NURSE_NOTES.APPOINTMENT_ID)>1
but it does not gives me any records.
scenario 2:
I am running below script with the intention to get the duplicate records with different INFUSION_APP_NURSE_NOTES.ID's but same INFUSION_APP_NURSE_NOTES.APPOINTMENT_ID.
SELECT INFUSION_APP_NURSE_NOTES.ID,INFUSION_APP_NURSE_NOTES.APPOINTMENT_ID,INFUSION_APP_NURSE_NOTES.TYPE
FROM INFUSION_APP_NURSE_NOTES
WHERE
EXISTS (
SELECT 1 FROM INFUSION_APP_APPOINTMENT
WHERE
INFUSION_APP_NURSE_NOTES.ENABLE=1
AND INFUSION_APP_NURSE_NOTES.APPOINTMENT_ID=INFUSION_APP_APPOINTMENT.ID
GROUP BY INFUSION_APP_NURSE_NOTES.ID
HAVING COUNT(INFUSION_APP_NURSE_NOTES.APPOINTMENT_ID)>1
)
ORDER BY INFUSION_APP_NURSE_NOTES.APPOINTMENT_ID;
but getting below error
SQL Error(164): Each GROUP BY expression must contain at least one
column that is not an outer reference
how to solve it?
i want the only row which has common APPOINTMENT_ID but different n
The question is unclear. Finding duplicates is typically performed using ranking functions like ROW_NUMBER(). This query :
SELECT *,ROW_NUMBER(PARTITION BY APPOINTMENT_ID ORDER BYID) as RN
FROM INFUSION_APP_NURSE_NOTES
WHERE
ENABLE=1
Will rank notes for the same appointment by ID and return 1, 2, 3 etc starting from the earliest note. ORDER BY ID DESC would return 1 for the latest note.
This can be used in a subquery or CTE to find the first, last or or duplicate records, eg :
with notes as (
SELECT *,ROW_NUMBER(PARTITION BY APPOINTMENT_ID ORDER BYID) as RN
FROM INFUSION_APP_NURSE_NOTES
WHERE
ENABLE=1
)
select *
from notes
where RN=1
Will return the first note per appointment while :
where RN>1
Will return only duplicates.
The question doesn't say what should be done with the duplicates though.
If the question is how to return all notes from appointments with multiple notes, a subquery can be used to return the APPOINTMENT_IDs that have more than one note. There's no need to include the INFUSION_APP_APPOINTMENT table though :
SELECT *
FROM INFUSION_APP_NURSE_NOTES
where
ENABLE=1 AND
APPOINTMENT_ID IN ( SELECT APPOINTMENT_ID
FROM INFUSION_APP_NURSE_NOTES
WHERE
ENABLE=1
group by APPOINTMENT_ID
having count(*)>1)
Try this
SELECT INFUSION_APP_NURSE_NOTES.ID,INFUSION_APP_NURSE_NOTES.APPOINTMENT_ID,INFUSION_APP_NURSE_NOTES.TYPE
FROM INFUSION_APP_NURSE_NOTES
WHERE
EXISTS (
SELECT COUNT(B.APPOINTMENT_ID), B.ID
FROM INFUSION_APP_APPOINTMENT A
INNER JOIN INFUSION_APP_NURSE_NOTES B ON B.APPOINTMENT_ID = A.ID
WHERE
B.ENABLE=1
GROUP BY B.ID
HAVING COUNT(B.APPOINTMENT_ID)>1
)
ORDER BY INFUSION_APP_NURSE_NOTES.APPOINTMENT_ID;
I am new to sql and trying to come up with a sql query which will list me the duplicate staff which were created in our system.
We have one staff which is created with id as 1234 and the same user has another account starting with staff id 01234. Is there anyway i can get the matching staff
Once i come up with correct duplicates i will than want to delete the accounts which don't have "0" at the start e.g deleted 1234 and only keep 01234
below is the sql
SELECT tps_user.tps_title AS [Name] , tps_user_type.tps_title AS [User Type]
FROM tps_user INNER JOIN
tps_user_type ON tps_user.tps_user_type_guid = tps_user_type.tps_guid
WHERE (tps_user.tps_title IN
(SELECT tps_title AS users
FROM tps_user AS t1
WHERE (tps_deleted = 0)
GROUP BY tps_title
HAVING (COUNT(tps_title) > 1))) AND (tps_user.tps_deleted = 0)
When you do you select try this:
SELECT DISTINCT CONVERT(INT,ID)
FROM your_table
WHERE ...
OR
SELECT ID
FROM your_table
WHERE ...
GROUP BY ID
This will convert all the id's to an int temporarily so when the distinct evaluates duplicates everything will be uniform to give you an accurate representation of the duplicates.
IF you don't want to convert them maybe convert them and insert them into a temporary table and add a flag to which ones have a leading zero. Or convert them then append a zero after you delete the duplicates since you want that anyway. It is easy to append a 0.
the below query will give you the list of duplicates with same Name and title. -
SELECT tps_user.tps_title AS [Name] ,
tps_user_type.tps_title AS [UserType],
COUNT(*) Duplicate_Count
FROM tps_user
INNER JOIN tps_user_type
ON tps_user.tps_user_type_guid = tps_user_type.tps_guid
group by tps_user.tps_title, tps_user_type.tps_title
having COUNT(*) > 1
order by Duplicate_Count desc
Select t1.stringId
from mytable t1
inner join mytable t2 on Convert(INT, t1.intId) = CONVERT(INT, t2.intId)
where t1.stringId not like '0%'
This should list all the persons that have duplicates but do not start with 0.
I have a simple table like this
Person
id,order
1;5
2;3
3;1
4;2
5;4
I need to get previous rows using order column
For example if the id parameter is 5( order = 4) , i need to return the rows id: 2,4,3.
if the id is 2(order = 3) , i need to return the rows id 4,3
Sorry if I am struggling to make me understand
I created this request but I have so trouble to make it work
select *
from Person p
where p.id= (
Select p2.id
from Person p2
where p2.id=1 /*so should return rows [ 5,2,4,3]*/
and p2.order< p2.order
)
Desired output
id,order
5;4
2;3
4;2
3;1
Thank you very much
You just need to select all with an order less than the ID-Order:
SELECT p.id
FROM Person p
WHERE "order" < (SELECT "order"
FROM Person
WHERE ID = 5)
ORDER BY "order" desc
Demo
This matches your description:
SELECT * FROM Person
WHERE "order" <
(SELECT "order" order FROM Person WHERE id = 5)
The subselect is used to retrieve the "order" of the specified row. In the subselect I performed the subtraction to find the previous value. That is used in the where clause of the select to get the rows you want.
I have a postgresql query like this:
with r as (
select
1 as reason_type_id,
rarreason as reason_id,
count(*) over() count_all
from
workorderlines
where
rarreason != 0
and finalinsdate >= '2012-12-01'
)
select
r.reason_id,
rt.desc,
count(r.reason_id) as num,
round((count(r.reason_id)::float / (select count(*) as total from r) * 100.0)::numeric, 2) as pct
from r
left outer join
rtreasons as rt
on
r.reason_id = rt.rtreason
and r.reason_type_id = rt.rtreasontype
group by
r.reason_id,
rt.desc
order by r.reason_id asc
This returns a table of results with 4 columns: the reason id, the description associated with that reason id, the number of entries having that reason id, and the percent of the total that number represents.
This table looks like this:
What I would like to do is only display the top 10 results based off the total number of entries having a reason id. However, whatever is leftover, I would like to compile into another row with a description called "Other". How would I do this?
with r2 as (
...everything before the select list...
dense_rank() over(order by pct) cause_rank
...the rest of your query...
)
select * from r2 where cause_rank < 11
union
select
NULL as reason_id,
'Other' as desc,
sum(r2.num) over() as num,
sum(r2.pct) over() as pct,
11 as cause_rank
from r2
where cause_rank >= 11
As said above Limit and for the skipping and getting the rest use offset... Try This Site
Not sure about Postgre but SELECT TOP 10... should do the trick if you sort correctly
However about the second part: You might use a Right Join for this. Join the TOP 10 Result with the whole table data and use only the records not appearing on the left side. If you calculate the sum of those you should get your "Sum of the rest" result.
I assume that vw_my_top_10 is the view showing you the top 10 records. vw_all_records shows all records (including the top 10).
Like this:
SELECT SUM(a_field)
FROM vw_my_top_10
RIGHT JOIN vw_all_records
ON (vw_my_top_10.Key = vw_all_records.Key)
WHERE vw_my_top_10.Key IS NULL
i have a trivia game and i want to reward users for 2 events:
1) answering correctly
2) sending a question to the questions pool
i want to query for score and rank of a specific player and i use this query:
SELECT (correct*10+sent*30) AS score, #rank:=#rank+1 AS rank
FROM ( trivia_players
JOIN ( SELECT COUNT(*) AS sent, senderid
FROM trivia_questions
WHERE senderid='$userid'
) a
ON trivia_players.userid=a.senderid
)
ORDER BY score DESC
and it works if the player is in both tables i.e answered correctly AND sent a question.
but it doesn't work if a player hasn't sent a question
any idea how to fix this query? ($userid is the given parameter)
thanks!
Thanks Tom! only problem is the ranks are not correct:
userid score rank
58217 380 1
12354 80 3
32324 0 2
I would probably do it like this:
SELECT
user_id,
score,
rank
FROM
(
SELECT
TP.user_id,
(TP.correct * 10) + (COUNT(TQ.sender_id) * 30) AS score,
#rank:=#rank + 1 AS rank
FROM
Trivia_Players TP
LEFT OUTER JOIN Trivia_Questions TQ ON
TQ.sender_id = TP.user_id
GROUP BY
TP.user_id,
TP.correct
ORDER BY
score DESC
) AS SQ
WHERE
SQ.user_id = $user_id
I don't use MySQL much, so the syntax may not be perfect. I think that you can use a subquery like this in MySQL. Assuming that MySQL handles COUNT() by only counting rows with a non-null value for , this should work.
The keys are that you do a COUNT over a non-null column from Trivia Questions so that it counts them up by the user and you need to use a subquery so that you can get ranks for everyone BEFORE constraining to a particular user id.
Have you tried using a RIGHT JOIN or LEFT JOIN? Just off the top of my head!