February 12, 2013 at 6:03 pm
Hi All,
we have a situation where we need to split the data in one row and insert it to multiple rows based on the data set Exiting:
Example
Table 1:
School Class Scholarship
DONBOS 10th 1000
Table 2:
School Class Name Credits
DONBOS 10th Ajay 20
DONBOS 10th Ramesh 12
DONBOS 10th Bobby 15
DONBOS 10th Giri 10
Result:
School class name Scholarship
DONBOS 10th Ajay 1000 * 20 / (20+12+15+10)
DONBOS 10th Ramesh 1000 * 12 / (20+12+15+10)
DONBOS 10th Bobby 1000 * 15 / (20+12+15+10)
DONBOS 10th Giri 1000 * 10 / (20+12+15+10)
the process can be built as Function / procedure, please need inputs.
February 12, 2013 at 8:43 pm
With 48 points to your credit, I'd think you should know that the forum helpers would be much obliged if you could provide DDL and consumable sample data like this:
CREATE TABLE #Table1
(School VARCHAR(10)
,Class VARCHAR(10)
,Scholarship MONEY)
INSERT INTO #Table1 SELECT 'DONBOS','10th',1000
CREATE TABLE #Table2
(School VARCHAR(10)
,Class VARCHAR(10)
,Name VARCHAR(10)
,Credits INT)
INSERT INTO #Table2
SELECT 'DONBOS','10th','Ajay',20 UNION ALL SELECT 'DONBOS','10th','Ramesh',12
UNION ALL SELECT 'DONBOS','10th','Bobby',15 UNION ALL SELECT 'DONBOS','10th','Giri',10
So here's a sample solution to get you started:
SELECT a.School, a.Class, a.Name
,AllocatedAmt=ROUND((a.Credits * b.Scholarship) /
SUM(a.Credits) OVER (PARTITION BY a.School, a.Class), 0)
FROM #Table2 a
INNER JOIN #Table1 b ON a.School = b.School AND a.Class = b.Class
DROP TABLE #Table1
DROP TABLE #Table2
Now it just so happens that the sum of the allocated and rounded scholarship amounts in this example adds up exactly to 1000. But that isn't always going to be the case. So when it doesn't you'll need to use a "fudge rounding" technique to force the total of the allocated amounts to equal the total.
Read this article to understand how to do that:
Financial Rounding of Allocations[/url]
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