Required Sum result in separate columns as per different elements in SQL - mysql

Question

I am new in SQL basically i required Sum result in separate columns as per different elements.
Please find my table and required result in below image.
Please guide me with regards to SQL query which give me the required result.

Answer 1

You can use conditional aggregation:
select payment,
sum(case when product = 'A' then amount else 0 end) as a,
sum(case when product = 'B' then amount else 0 end) as b,
sum(case when product = 'C' then amount else 0 end) as c,
sum(case when product = 'D' then amount else 0 end) as d,
sum(amount) as total
from t
group by payment;

Answer 2

You can use PIVOT to get the desired result
SELECT * ,
[A] + [B] + [C] + [D] AS Total
FROM ( SELECT Payment, Product, Amount FROM Your_Table) tr
PIVOT( SUM(Amount) FOR Product IN ( [A], [B], [C], [D] ) ) p;

Answer 3

You can use dynamic SQL pivot query if your products are not limited with A,B,C and D
Here is a sample query for SQL Server
DECLARE #products nvarchar(max)
SELECT #products =
STUFF(
(
select distinct ',[' + product + ']'
from Payments
for xml path('')
),
1,1,'')
declare #sql nvarchar(max)
set #sql = '
SELECT
*
FROM (
SELECT
Payment AS '' '',
Product,
Amount
from Payments
) Data
PIVOT (
SUM(Amount)
FOR Product
IN (
' + #products + '
)
) PivotTable'
exec sp_executesql #sql

Answer 4

Below is sample data
IF OBJECT_ID('tempdb..#t')IS NOT NULL
DROp TABLE #t
;with cte (Payment,Product,Amount)
AS
(
SELECT 'Cash','A',1 UNION ALL
SELECT 'Credit','B',2 UNION ALL
SELECT 'Credit','C',3 UNION ALL
SELECT 'Cash','D',5 UNION ALL
SELECT 'Cash','A',6 UNION ALL
SELECT 'Credit','B',23 UNION ALL
SELECT 'Credit','C',7 UNION ALL
SELECT 'Cash','D',11 UNION ALL
SELECT 'Cash','A',12 UNION ALL
SELECT 'Credit','B',14 UNION ALL
SELECT 'Credit','C',16 UNION ALL
SELECT 'Cash','D',26
)
SELECT * INTO #t FROM cte
Using Dynamic Sql
DECLARE #DyColumn Nvarchar(max),
#Sql Nvarchar(max),
#ISNULLDyColumn Nvarchar(max),
#SumCol Nvarchar(max)
SELECT #DyColumn=STUFF((SELECT DISTINCT ', '+QUOTENAME(Product) FROM #t FOR XML PATH ('')),1,1,'')
SELECT #ISNULLDyColumn=STUFF((SELECT DISTINCT ', '+'ISNULL('+QUOTENAME(Product)+',''0'')' +' AS '+QUOTENAME(Product) FROM #t FOR XML PATH ('')),1,1,'')
SELECT #SumCol=STUFF((SELECT DISTINCT ' + '+QUOTENAME(Product) FROM #t FOR XML PATH ('')),1,2,'')
SET #Sql='
SELECT *,('+#SumCol+') AS Total FROM
(
SELECT Payment,'+#ISNULLDyColumn+'
FROM
(
SELECT * FROM #t
)AS
SRC
PIVOT
(
SUM(AMOUNT) FOR Product IN ('+#DyColumn+')
) AS Pvt
)dt
'
PRINT #Sql
EXECUTE (#Sql)
Result
Payment A B C D Total
---------------------------------
Cash 19 0 0 42 61
Credit 0 39 26 0 65