Stored Procedure - usp_DimOrgUnitLoad

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

Name

Data Type

Direction

Description

Name	Type
Verify_dbo_DimOrgUnit	Table

Name	Type
Verify_dbo_DimOrgUnit	TABLE

Object

Property

Value

Object

Property

Value

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

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