Stored Procedure - usp_DimPositionLoad

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

Name

Data Type

Direction

Description

Name	Type
Verify_dbo_DimPosition	Table

Name	Type
Verify_dbo_DimPosition	TABLE

Object

Property

Value

Object

Property

Value

/****** Object: StoredProcedure [dbo].[usp_DimPositionLoad_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_DimPositionLoad_DupKeyCheck]
AS
SET NOCOUNT ON
-- Create in-memory table for later use within this proc
CREATE TABLE #Position_Dup
    (
    [PositionAK] VARCHAR(16) NOT NULL
    )
-- populate table with duplicate PositionAK values
INSERT INTO #Position_Dup
    (
    [PositionAK]
    )
    select PositionAK
    from Verify_dbo_DimPosition
    group by PositionAK
    having COUNT(PositionAK) > 1

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