Stored Procedure - usp_DimStudentTermLoad

Property	Value
Name	usp_DimStudentTermLoad_DupKeyCheck
Schema	dbo
Is Encrypted	False
Ansi Nulls Status	True
Quoted Identifier Status	True
Description

Name

Data Type

Direction

Description

Name	Type
Verify_dbo_DimStudentTerm	Table

Name	Type
Verify_dbo_DimStudentTerm	TABLE

Object

Property

Value

Object

Property

Value

/****** Object: StoredProcedure [dbo].[usp_DimStudentTermLoad_DupKeyCheck] Script Date: 03/09/2017 17:21:49 ******/
SET ANSI_NULLS ON
SET QUOTED_IDENTIFIER ON
/* Primary Student Term Source SELECT Statement including Incremental Modifications*/
CREATE PROC [dbo].[usp_DimStudentTermLoad_DupKeyCheck]
AS
SET NOCOUNT ON
-- Create in-memory table for later use within this proc
CREATE TABLE #Stdnt_Term_Dup
    (
    [StudentTermAK] VARCHAR(15) NOT NULL
    )
-- populate table with duplicate StudentTermAK values
INSERT INTO #Stdnt_Term_Dup
    (
    [StudentTermAK]
    )
    select StudentTermAK
    from Verify_dbo_DimStudentTerm
    group by StudentTermAK
    having COUNT(StudentTermAK) > 1

--Detect duplicate records and set flag
UPDATE Verify_dbo_DimStudentTerm
SET RowIsDuplicate = 'Y'
FROM Verify_dbo_DimStudentTerm
WHERE StudentTermAK
IN
(
select StudentTermAK
from #Stdnt_Term_Dup
);
--Set RowIsSelected = N for duplicated records (detected above)
UPDATE RecordsToIgnore
SET RowIsSelected = 'N'
FROM dbo.Verify_dbo_DimStudentTerm RecordsToIgnore
INNER JOIN
(
--Returns the first record for a set of duplicated StudentTerms
--(as defined as minimum of surrogate key of temp table)
SELECT StudentTermAK, MIN(VerifyStudentTermSK) as Min_VerifyStudentTermSK
FROM Verify_dbo_DimStudentTerm
WHERE StudentTermAK in
  (
    select StudentTermAK
    from #Stdnt_Term_Dup
  )
GROUP BY StudentTermAK
) as Keeper
ON (
Keeper.StudentTermAK = RecordsToIgnore.StudentTermAK
AND
Keeper.Min_VerifyStudentTermSK <> RecordsToIgnore.VerifyStudentTermSK
)
WHERE RecordsToIgnore.RowIsDuplicate = 'Y';