I have a table that contains:
Name / date
test1 24-11-2014
test2 24-11-2014
teste3 23-11-2014
Im trying to make a query that count the number of names per date, But Its not working fine, it is returning 3 instead of 2.
My query:
SELECT DATE(data),COUNT(data) as num FROM users
WHERE name = '$user' GROUP BY DATE(data)
How can I fix it?
THanks! Sorry for my english..
You don't need the DATE() function you can simply do this, also you are counting names, not the dates
SELECT date,COUNT(name) as num FROM users
WHERE name = '$user' GROUP BY date
Also you are writing 'data' instead of 'date', what is the column name?
Related
I have a table named Ticket Numbers, which (for this example) contain the columns:
Ticket_Number
Assigned_Group
Assigned_Group_Sequence_No
Reported_Date
Each ticket number could contain 4 rows, depending on how many times the ticket changed assigned groups. Some of these rows could contain an assigned group of "Desktop Support," but some may not. Here is an example:
Example of raw data
What I am trying to accomplish is to get the an output that contains any ticket numbers that contain 'Desktop Support', but also the assigned group of the max sequence number. Here is what I am trying to accomplish with SQL:
Queried Data
I'm trying to use SQL with the following query but have no clue what I'm doing wrong:
select ih.incident_number,ih.assigned_group, incident_history2.maxseq, incident_history2.assigned_group
from incident_history_public as ih
left join
(
select max(assigned_group_seq_no) maxseq, incident_number, assigned_group
from incident_history_public
group by incident_number, assigned_group
) incident_history2
on ih.incident_number = incident_history2.incident_number
and ih.assigned_group_seq_no = incident_history2.maxseq
where ih.ASSIGNED_GROUP LIKE '%DS%'
Does anyone know what I am doing wrong?
You might want to create a proper alias for incident_history. e.g.
from incident_history as incident_history1
and
on incident_history1.ticket_number = incident_history2.ticket_number
and incident_history1.assigned_group_seq_no = incident_history2.maxseq
In my humble opinion a first error could be that I don't see any column named "incident_history2.assigned_group".
I would try to use common table expression, to get only ticket number that contains "Desktop_support":
WITH desktop as (
SELECT distinct Ticket_Number
FROM incident_history
WHERE Assigned_Group = "Desktop Support"
),
Than an Inner Join of the result with your inner table to get ticket number and maxSeq, so in a second moment you can get also the "MAXGroup":
WITH tmp AS (
SELECT i2.Ticket_Number, i2.maxseq
FROM desktop D inner join
(SELECT Ticket_number, max(assigned_group_seq_no) as maxseq
FROM incident_history
GROUP BY ticket_number) as i2
ON D.Ticket_Number = i2.Ticket_Number
)
SELECT i.Ticket_Number, i.Assigned_Group as MAX_Group, T.maxseq, i.Reported_Date
FROM tmp T inner join incident_history i
ON T.Ticket_Number = i.Ticket_Number and i.assigned_group_seq_no = T.maxseq
I think there are several different method to resolve this question, but I really hope it's helpful for you!
For more information about Common Table Expression: https://www.essentialsql.com/introduction-common-table-expressions-ctes/
What do I have to change to get different results from different names.The table should give me the debts of each of them, this is calculated by the amount and the price of the drink. Now it should show all the names with the corresponding invoice that happens after the select
%sql select name, sum(getraenk.preis*schulden.menge) schulden from schulden \
join person on (fk_person = person.id)\
join getraenk on (fk_getraenk = getraenk.id)\
where name like ("dani")
Edit: it should spend all the names with their debts, that is:
dani = 8.5
michael = 12.5
...
Just in case your problem is very simple, you should be able to see all names and values with an SQL that looks like this:
select name, getraenk.preis*schulden.menge schulden
from schulden
join person on (fk_person = person.id)
join getraenk on (fk_getraenk = getraenk.id)
Note that I removed the where clause... this was the part that limited it to one name.
You also don't need the sum clause here unless you are doing a group by
Have you considered simply using GROUP BY name at the end of this query?
https://www.w3schools.com/sql/sql_groupby.asp
This will give you the sum of total debt for all names in your table which sounds like the result you are looking for.
You're missing
GROUP BY name
in the query.
I have the following SQL statement. It's throws the following error: "Only a single result allowed for a SELECT that is part of an expression". The goal of my sql statement is to get the name of the employee who made the 'cheapest' bribe.
The part between the brackets return the employee_id and the money it costs a day (of the relative cheapest bribe). These are two results while I only want the employee_id. So I just want to use the MIN part to get the right employee_id. How can I do this?
SELECT Voornaam, Achternaam
FROM Medewerker m JOIN
(
SELECT Medewerker_id
FROM Steekpenning
ORDER BY -1*Bedrag/(julianday(Begindatum) - julianday(Einddatum))
limit 1
) s
on m.Medewerker_id = s.Medewerker_id;
EDITED the answer. How can I expand this query to only show the bribes started this month? I think I need to use something like this? (julianday(Begindatum) - julianday('now')) > 31 but where?
Regards.
Cas
I think the following will work in SQLite:
select Firstname, Surname
from Employee e join
(select employee_id
from bribe
order by -1*Amount/(julianday(Startdate) - julianday(Enddate))
limit 1
) b
on e.employee_id = b.employee_id;
I got a table with a date-column and a column like this:
Column
01-00-00-00
01-02-00-00
03-06-00-00
05-13-00-00
....
What I want to do: Find out how many entries start with "01","02","03",... for every day.
Therefore I need to first substract the first 2 characters, count them and group by the date.
I have a code that works fine, but needs really long. Do you have an idea for a more simple query?
SELECT
Date,
sum(IIF(Platz='03',1,0)) as Gang_03,
sum(IIF(Platz='04',1,0)) as Gang_04,
sum(IIF(Platz='05',1,0)) as Gang_05,
sum(IIF(Platz='06',1,0)) as Gang_06,
sum(IIF(Platz='07',1,0)) as Gang_07,
sum(IIF(Platz='08',1,0)) as Gang_08,
sum(IIF(Platz='09',1,0)) as Gang_09,
sum(IIF(Platz='10',1,0)) as Gang_10,
sum(IIF(Platz='11',1,0)) as Gang_11,
sum(IIF(Platz='12',1,0)) as Gang_12,
sum(IIF(Platz='13',1,0)) as Gang_13,
sum(IIF(Platz='14',1,0)) as Gang_14,
sum(IIF(Platz='15',1,0)) as Gang_15,
sum(IIF(Platz='16',1,0)) as Gang_16,
sum(IIF(Platz='17',1,0)) as Gang_17,
sum(IIF(Platz='18',1,0)) as Gang_18,
sum(IIF(Platz='19',1,0)) as Gang_19,
sum(IIF(Platz='20',1,0)) as Gang_20
FROM
(
SELECT
time_neu as Date,
LEFT(Platz_von,2) as Platz
FROM
00_Gesamt_Pickauf
)
GROUP BY
Date
I have a sqlite3 database with one table called orig:
CREATE TABLE orig (sdate date, stime integer, orbnum integer);
What I want to do is select the first date/time for each orbnum. The only problem is that stime holds the time as a very awkward integer.
Assuming a six-digit number, the first two digits show the hour, the 3./4. show the minutes, and the last two digits show the seconds. So a value of 12345 is 1:23:45, whereas a value of 123456 is 12:34:56.
I figured I'd do this using two nested join/group statements, but somehow I cannot get it to work properly. Here's what I've got so far:
select s.orbnum, s.sdate, s.stime
from (
select t.orbnum, t.sdate, t.stime, min(t.sdate) as minsdate
from (
select orbnum, sdate, stime, min(stime) as minstime
from scia group by orbnum, sdate
) as t inner join orig as s on s.stime = t.minstime and s.sdate = t.sdate and s.orbnum = t.orbnum
) as d inner join scia as s on s.stime = d.stime and s.sdate = minsdate and s.orbnum = d.orbnum
where s.sdate >= '2002-08-01' limit 0,200;
This is the error I get:
Error: no such column: t.orbnum
I'm sure it's just some stupid mistake, but actually, I'm quite new to SQL ...
Any help is greatly appreciated :)
Edit:
After fixing the obvious typo, the query runs -- but returns an empty result set. However, the table holds ~10yrs of data, with about 12 orbnums per day and about 4-5 different times per orbnum. So I guess there's some mistake in the logic of the query ...
In your last join, you have d, which is the result of your double nested select, and you join s on it. From there, t is not visible. That’s why you get the “no such column: t.orbnum” error. Maybe you meant s.orbnum = d.orbnum?