Stored Procedure - usp_DimAssignmentLoad

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

Name

Data Type

Direction

Description

Name	Type
Verify_dbo_DimAssignment	Table

Name	Type
Verify_dbo_DimAssignment	TABLE

Object

Property

Value

Object

Property

Value

/****** Object: StoredProcedure [dbo].[usp_DimAssignmentLoad_DupKeyCheck] Script Date: 03/09/2017 17:21:49 ******/
SET ANSI_NULLS ON
SET QUOTED_IDENTIFIER ON
CREATE PROC [dbo].[usp_DimAssignmentLoad_DupKeyCheck]
AS
SET NOCOUNT ON
-- Create in-memory table for later use within this proc
CREATE TABLE #Assignment_Dup
    (
    [AssignmentAK] VARCHAR(20) NOT NULL
    )
-- populate table with duplicate AssignmentAK values
INSERT INTO #Assignment_Dup
    (
    [AssignmentAK]
    )
    select AssignmentAK
    from Verify_dbo_DimAssignment
    group by AssignmentAK
    having COUNT(AssignmentAK) > 1

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