I have the following table format.
POLNO
NAME
PRM
12100
PRMA
161410
12100
PRMB
0
12100
PRMC
0
12100
PRMD
80
I need to convert this table to follow.
POLNO
PRMA
PRMB
PRMC
PRMD
12100
161410
0
0
80
Anyone have an idea how to do this?
You may use pivoting logic:
SELECT
POLNO,
MAX(CASE WHEN NAME = 'PRMA' THEN PRM END) AS PRMA,
MAX(CASE WHEN NAME = 'PRMB' THEN PRM END) AS PRMB,
MAX(CASE WHEN NAME = 'PRMC' THEN PRM END) AS PRMC,
MAX(CASE WHEN NAME = 'PRMD' THEN PRM END) AS PRMD
FROM yourTable
GROUP BY POLNO;
Related
I'm trying to switch rows and columns with PIVOT (or another method). The documentation is pretty confusing to me. Thanks
DECLARE #CallCenterID Int;
DECLARE #BeginDateofReview SmallDateTime;
DECLARE #EndDateofReview SmallDateTime;
SELECT
COUNT(case when Score_Greeting = 'Yes' then Score_Greeting END) AS Score_Greeting_Passed,
SUM(CASE WHEN Score_Greeting IS NOT NULL THEN 1 ELSE 0 END) AS Score_Greeting_Reviewed,
ROUND(CONVERT(decimal(4,1), (COUNT(CASE WHEN Score_Greeting = 'Yes' THEN Score_Greeting END) * 100.0) / NULLIF(SUM(CASE WHEN Score_Greeting IS NOT NULL THEN 1 ELSE 0 END),0),0),0) AS Score_Greeting_PctngPassed,
COUNT(CASE WHEN Score_Authentication = 'Yes' THEN Score_Authentication END) AS Score_Authentication_Passed,
SUM(CASE WHEN Score_Authentication IS NOT NULL THEN 1 ELSE 0 END) AS Score_Authentication_Reviewed,
ROUND(CONVERT(decimal(4,1), (COUNT(CASE WHEN Score_Authentication = 'Yes' THEN Score_Authentication END) * 100.0) / NULLIF(SUM(CASE WHEN Score_Authentication IS NOT NULL THEN 1 ELSE 0 END), 0), 0), 0) AS Score_Authentication_PctngPassed,
FROM
Calls
WHERE
CallCenterID = #CallCenterID AND
(DateofReview >= #BeginDateofReview AND DateofReview <= #EndDateofReview)
Desired results:
Score_Greeting_Passed 5
Score_Greeting_Reviewed 9
Score_Greeting_PctngPassed 56
Score_Authentication_Passed 6
Score_Authentication_Reviewed 9
Score_Authentication_PctngPassed 67
You can use the UNPIVOT operator to transpose the rows and columns. If we assume your query above is stored in #YourData, it's going to be something like:
SELECT
UnpivotedData.ScoreType
, UnpivotedData.ScoreValue
FROM
#YourData
UNPIVOT (ScoreValue FOR ScoreType IN ( [Score_Greeting_Passed], [Score_Greeting_Reviewed], [Score_Greeting_PctngPassed],
[Score_Authentication_Passed], [Score_Authentication_Reviewed], [Score_Authentication_PctngPassed] )) AS UnpivotedData
**Note: I need to go a little further and add NULLIF(0 or 5). I wrote a short post about my answer here:
http://peterkellner.net/2013/10/13/creating-a-compound-nullif-in-avg-function-with-sqlserver/
but am not happy with my solution)
I've got a table with results where attendees type in estimated attendance to a course. If they type 0 or leave it empty, I want ignore that and get the average of values typed in. I can't figure out how to add that constraint to my AVG function without having a where clause for the entire SQL. Is that possible? My code looks like this: (EstimatedNumberAttendees is what I'm going after).
SELECT dbo.SessionEvals.SessionId,
AVG(Cast (dbo.SessionEvals.CourseAsWhole as Float)) AS CourseAsWholeAvg,
COUNT(*),
COUNT(case
when dbo.SessionEvals.InstructorPromptness = 'On Time' then 1
else null
end) AS SpeakerOnTime,
COUNT(case
when dbo.SessionEvals.InstructorPromptness = 'Late' then 1
else null
end) AS SpeakerLate,
COUNT(case
when dbo.SessionEvals.InstructorPromptness = 'NoShow' then 1
else null
end) AS SpeakerNoShow,
COUNT(case
when dbo.SessionEvals.PercentFull = '10% to 90%' then 1
else null
end) AS PercentFull10to90,
COUNT(case
when dbo.SessionEvals.PercentFull = '> 90%' then 1
else null
end) AS PercentFullGreaterThan90,
COUNT(case
when dbo.SessionEvals.PercentFull = ' < 10% Full ' then 1
else null
end) AS PercentFullLessThan10,
AVG(Cast (dbo.SessionEvals.EstimatedNumberAttendees as Float)) AS
EstimatedAttending
FROM dbo.Sessions
INNER JOIN dbo.SessionEvals ON (dbo.Sessions.Id =
dbo.SessionEvals.SessionId)
WHERE dbo.Sessions.CodeCampYearId = 8
GROUP BY dbo.SessionEvals.SessionId
AVG omits NULLs. Therefore make it treat 0s as NULLs. Use NULLIF for that:
...
AVG(NULLIF(Cast (dbo.SessionEvals.CourseAsWhole as Float), 0)) AS CourseAsWholeAvg,
...
AVG(NULLIF(Cast (dbo.SessionEvals.EstimatedNumberAttendees as Float), 0)) AS EstimatedAttending
...
You can try to use an inner query to get the same sessions but exclude zero and null:
SELECT dbo.SessionEvals.SessionId,
(
SELECT AVG(SE1.CourseAsWhole)
FROM dbo.SessionEvals SE1
WHERE SE1.SessionId = dbo.SessionEvals.SessionId
AND ISNULL(SE1.CourseAsWhole, 0) <> 0
) AS CourseAsWholeAvg,
COUNT(*),
COUNT(case
when dbo.SessionEvals.InstructorPromptness = 'On Time' then 1
else null
end) AS SpeakerOnTime,
COUNT(case
when dbo.SessionEvals.InstructorPromptness = 'Late' then 1
else null
end) AS SpeakerLate,
COUNT(case
when dbo.SessionEvals.InstructorPromptness = 'NoShow' then 1
else null
end) AS SpeakerNoShow,
COUNT(case
when dbo.SessionEvals.PercentFull = '10% to 90%' then 1
else null
end) AS PercentFull10to90,
COUNT(case
when dbo.SessionEvals.PercentFull = '> 90%' then 1
else null
end) AS PercentFullGreaterThan90,
COUNT(case
when dbo.SessionEvals.PercentFull = ' < 10% Full ' then 1
else null
end) AS PercentFullLessThan10,
AVG(Cast (dbo.SessionEvals.EstimatedNumberAttendees as Float)) AS
EstimatedAttending
FROM dbo.Sessions
INNER JOIN dbo.SessionEvals ON (dbo.Sessions.Id =
dbo.SessionEvals.SessionId)
WHERE dbo.Sessions.CodeCampYearId = 8
GROUP BY dbo.SessionEvals.SessionId
SQL AVG function will by default ignore null values so you need to only exclude the 0s. Your AVG code can be changed to below:
AVG(nullif( Cast(dbo.SessionEvals.CourseAsWhole as Float), 0) AS CourseAsWholeAvg
I have a serious problem. Say my data is arranged in this format:
Name Businees_unit Forecast Upside
Jack.N India 100 50
Jack.N China 250 20
I have to pivot Forecast and Upside for Business_Unit so the table will look like this
Name Forecast_India Upside_India Forecast_China Upside_China
Jack 100 50 250 20
Can this be done in one query?
Its my first entry, so any help is very welcomed.
Thanks
A generic solution:
select name,
sum(case when Businees_unit = 'India' then Forecast else 0 end) Forecast_India,
sum(case when Businees_unit = 'India' then Upside else 0 end) Upside_India,
sum(case when Businees_unit = 'China' then Forecast else 0 end) Forecast_China,
sum(case when Businees_unit = 'China' then Upside else 0 end) Upside_China
from My_table
group by name
I would use self join:
SELECT DISTINCT SomeTable.Name, China.Forecast as Forecast_China, China.Upside as Upside_China
, India.Forecast as Forecast_India, India.Upside as Upside_India
FROM SomeTable
inner join SomeTable India on India.Name = SomeTable.Name AND India.Business_unit = 'India'
inner join SomeTable China on China.Name = SomeTable.Name AND China.Business_unit = 'China'
I'm using SQL Server 2005. I'm looking to add up the columns (AM, Midday, Evening) to see which ones contains the value "YES" and then take that total and multiply it by the rate for each row for a client.
Here is the query I have so far:
Select
Sum(Case When morning = 'yes' Then 1 Else 0 End) am_total,
Sum(Case When midday = 'yes' Then 1 Else 0 End) midday_total
From services
where client_id = 24
with the following output
am_total midday_total
45 49
When I introduce the rate variable, my query starts telling me I need the group_by clause and I don't think I'm ready for that since I still need to add the am_total and the midday_total together first and then multiply that by the rate.
Ultimately, all I'm looking for is the grand total.
If I understand your question, maybe this is what you need
declare #rate int
set #rate = 2 /*what ever rate is */
select am_total * #rate as am, midday_total * #rate as midday
from (
Select
Sum(Case When morning = 'yes' Then 1 Else 0 End) am_total,
Sum(Case When midday = 'yes' Then 1 Else 0 End) midday_total
From services
where client_id = 24
)
You can also join another table and use its columns in calculation
Select
Sum(Case When morning = 'yes' Then 1 * u.rate Else 0 End) am_total,
Sum(Case When midday = 'yes' Then 1 * u.rate Else 0 End) midday_total
From services srv inner join users u on services.id = u.service_id -- assuming this is relation
pay attention on u.rate above
I have a problem writing HQL.
The problem is that I want something like this to be transferred to HQL
select
tb.aca_year,
(case when tw.isfulltime = 1 then count(te) end) as fulltime,
(case when tw.isfulltime = 0 then count(te) end) as parttime
from timetable tb, teacher te, teacherworktype tw
where .............
group by tb.aca_year
................
any suggestion please?
Best Regards,
You can do something like this:
select tb.aca_year,
sum(case when tw.isfulltime = 1 then 1 else 0 end) as fulltime,
sum(case when tw.isfulltime = 0 then 1 else 0 end) as parttime
from timetable tb, teacher te, teacherworktype tw
where .............
group by tb.aca_year ................