Stored Procedure - usp_DimZipCountyLoad

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

Name

Data Type

Direction

Description

Name	Type
Verify_dbo_DimZipCounty	Table

Name	Type
Verify_dbo_DimZipCounty	TABLE

Object

Property

Value

Object

Property

Value

/****** Object: StoredProcedure [dbo].[usp_DimZipCountyLoad_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_DimZipCountyLoad_DupKeyCheck]
AS
SET NOCOUNT ON
-- Create in-memory table for later use within this proc
CREATE TABLE #User_Dup
    (
    [ZipCodeAK] VARCHAR(5) NOT NULL
    )
-- populate table with duplicate ZipCodeAK values
INSERT INTO #User_Dup
    (
    [ZipCodeAK]
    )
    select ZipCodeAK
    from Verify_dbo_DimZipCounty
    group by ZipCodeAK
    having COUNT(ZipCodeAK) > 1

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