data between two dates in column for each day - sql

Question

I have table worker
id name
----------- -------------------
5 Артур Петрович
6 Дмитрий Белов
7 Казарян Артур
and another table
id date amount id_worker
----------- ---------- ----------- -----------
27 2013-09-12 1500 5
28 2013-09-12 100 6
29 2013-09-12 500 5
30 2013-09-12 500 6
31 2013-09-14 1000 7
32 2013-09-15 100 5
33 2013-09-15 200 5
I want to write stored procedure which on input gets start and end dates
and on output I want to get this table if:
start date:2013-09-10
end date :2013-09-15
Name 2013-09-10 2013-09-11 2013-09-12 2013-09-13 2013-09-14 2013-09-15
_______________ __________ __________ __________ __________ __________ __________
Артур Петрович 0 0 2000 0 0 300
Дмитрий Белов 0 0 600 0 0 0
Казарян Артур 0 0 0 0 1000 0

Answer 1

The only way I konw to do this is using Dynamic SQL, IMO there is no risk of SQL Injection if the tables structures are known ahead
DECLARE #DateList VARCHAR(MAX), #DateListCoalesced VARCHAR(MAX)
SELECT #DateList = '', #DateListCoalesced = ''
;WITH DateLimits AS (
SELECT CAST('2013-9-10' AS DATE) AS dt
UNION ALL
SELECT DATEADD(dd, 1, dt)
FROM DateLimits s
WHERE DATEADD(dd, 1, dt) <= CAST('2013-9-15' AS DATE))
SELECT #DateList = #DateList + '[' + CAST(dt AS VARCHAR)+ '], ' ,
#DateListCoalesced = #DateListCoalesced + ' COALESCE( [' + CAST(dt AS VARCHAR)+ '] , 0) as [' + CAST(dt AS VARCHAR)+ '], '
FROM DateLimits
;SET #DateList = LEFT(#DateList, LEN(#DateList) - 1)
;SET #DateListCoalesced = LEFT(#DateListCoalesced, LEN(#DateListCoalesced) - 1)
DECLARE #query NVARCHAR(max)
SET #query = N'SELECT [Name], ' + #DateListCoalesced +'
FROM
(SELECT [Name], [Date], [Amount]
FROM WorkerAmount
INNER JOIN Worker ON WorkerAmount.id_worker = Worker.id
) p
PIVOT
(
Sum ([Amount] )
FOR [Date] IN ( '+ #DateList +' )
) AS pvt '
EXEC sp_executesql #Query
This answer uses a combination of few other questions
getting dates between range of dates
Pivots with dynamic columns in sql-server
replace null values in sql pivot