initial commit

2026-05-12 16:40:03 +01:00
commit 647d1bfa7f
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+-- ============================================================================
+-- MEDS__ProductPriceAndUnitLookup
+-- Medicine Reference Data: Price Per Unit and Pack Unit Descriptions
+-- ============================================================================
+-- Derives PricePerUnit and PackUnitDescription for all dm+d product levels
+-- For VMPP/AMPP: uses direct values from DimMedicineAndDevice
+-- For VMP/AMP: derives from child VMPP/AMPP products
+--   - Price: AVG of child prices
+--   - Units: MODE (most common) of child units
+-- Price priority: DrugTariffPricePerUnit > IndicativePricePerUnit > AnnualCost/AnnualQuantity
+-- ============================================================================
+
+WITH PackLevelData AS (
+    -- Get prices and units for pack-level products (VMPP/AMPP)
+    SELECT
+        "ProductSnomedCode",
+        "ParentPresentationSnomedCode",
+        "ProductLevel",
+        "PackUnitDescription",
+        COALESCE(
+            "DrugTariffPricePerUnit",
+            "IndicativePricePerUnit",
+            CASE WHEN "AnnualQuantity" > 0 THEN "AnnualCost" / "AnnualQuantity" END
+        ) AS PricePerUnit
+    FROM DATA_HUB.DWH."DimMedicineAndDevice"
+    WHERE "ProductLevel" IN ('VMPP', 'AMPP')
+),
+
+ProductPrices AS (
+    -- Direct prices for VMPP/AMPP
+    SELECT
+        "ProductSnomedCode",
+        PricePerUnit
+    FROM PackLevelData
+    WHERE PricePerUnit IS NOT NULL
+
+    UNION ALL
+
+    -- Aggregated prices for VMP/AMP from their children
+    SELECT
+        parent."ProductSnomedCode",
+        AVG(pld.PricePerUnit) AS PricePerUnit
+    FROM DATA_HUB.DWH."DimMedicineAndDevice" parent
+    JOIN PackLevelData pld ON pld."ParentPresentationSnomedCode" = parent."ProductSnomedCode"
+    WHERE parent."ProductLevel" IN ('VMP', 'AMP')
+      AND pld.PricePerUnit IS NOT NULL
+    GROUP BY parent."ProductSnomedCode"
+),
+
+PackUnits AS (
+    -- Direct units for VMPP/AMPP
+    SELECT
+        "ProductSnomedCode",
+        "PackUnitDescription"
+    FROM PackLevelData
+    WHERE "PackUnitDescription" IS NOT NULL
+
+    UNION ALL
+
+    -- Units for VMP/AMP: use most common unit from child VMPP/AMPP products
+    SELECT
+        parent."ProductSnomedCode",
+        MODE(pld."PackUnitDescription") AS "PackUnitDescription"
+    FROM DATA_HUB.DWH."DimMedicineAndDevice" parent
+    JOIN PackLevelData pld ON pld."ParentPresentationSnomedCode" = parent."ProductSnomedCode"
+    WHERE parent."ProductLevel" IN ('VMP', 'AMP')
+      AND pld."PackUnitDescription" IS NOT NULL
+    GROUP BY parent."ProductSnomedCode"
+)
+
+-- ============================================================================
+-- Usage: Join these CTEs to prescribing data on ProductSnomedCode
+-- ============================================================================
+-- Example:
+-- SELECT
+--     prescribing.*,
+--     pp.PricePerUnit,
+--     pu."PackUnitDescription",
+--     ROUND(pp.PricePerUnit * prescribing."Quantity", 2) AS EstPrice
+-- FROM [prescribing_data] prescribing
+-- LEFT JOIN ProductPrices pp ON prescribing."SNOMEDCode" = pp."ProductSnomedCode"
+-- LEFT JOIN PackUnits pu ON prescribing."SNOMEDCode" = pu."ProductSnomedCode"
+-- ============================================================================
+
+SELECT
+    pp."ProductSnomedCode",
+    pp.PricePerUnit,
+    pu."PackUnitDescription"
+FROM ProductPrices pp
+LEFT JOIN PackUnits pu ON pp."ProductSnomedCode" = pu."ProductSnomedCode"
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+-- =============================================================================
+-- Run BOTH queries and import into a sheet called "Lookup":
+--   - Column A = Brand Name (from Query 1)
+--   - Column C = Generic Name (from Query 2)
+-- =============================================================================
+
+-- QUERY 1: Brand Names -> paste into Column A of "Lookup" sheet
+SELECT DISTINCT
+    mad."ProductDescription" AS "Brand Name"
+FROM DATA_HUB.DWH."DimMedicineAndDevice" mad
+WHERE mad."ProductDescription" IS NOT NULL
+ORDER BY mad."ProductDescription";
+
+
+-- QUERY 2: Generic Names -> paste into Column C of "Lookup" sheet
+SELECT DISTINCT
+    gen."ProductDescription" AS "Generic Name"
+FROM DATA_HUB.DWH."DimMedicineAndDevice" mad
+INNER JOIN DATA_HUB.DWH."DimMedicineAndDevice" gen
+    ON mad."MedicinalLatestSnomedCode" = gen."ProductSnomedCode"
+WHERE gen."ProductDescription" IS NOT NULL
+ORDER BY gen."ProductDescription";
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+-- Latest Data Query for Snowflake
+-- Returns the most recent prescribing system event date.
+-- DateMedicationStart can include future-dated medication records, so this uses
+-- DateEventRecorded as the data freshness marker.
+
+SELECT
+    MAX(CAST("DateEventRecorded" AS DATE)) AS "LatestEventRecordedDate"
+FROM PRIMARY_CARE.TPP."SRPrimaryCareMedication"
+WHERE "DateEventRecorded" >= DATEADD('MONTH', -3, CURRENT_DATE());
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+/*
+================================================================================
+HF_07_PracticeList.sql
+Distinct list of GP Practices in Norfolk & Waveney ICB
+================================================================================
+
+PURPOSE:
+Reference list of GP practice codes and names for the heart failure analysis.
+
+CREATED: 2026-01-13
+================================================================================
+*/
+
+SELECT DISTINCT
+    org."SiteCode" AS "Practice Code",
+    org."OrganisationName" AS "Practice Name",
+    org."PlaceName" AS "Place",
+    org."PCNName" AS "PCN"
+FROM DATA_HUB.DWH."DimOrganisationAndSite" org
+WHERE org."IsSiteActive" = 'Yes'
+  AND org."SiteType" = 'Parent'
+  AND org."IsSiteNorfolkAndWaveney" = 'Yes'
+  AND org."OrganisationSubType" = 'GP Practice'
+ORDER BY org."OrganisationName";
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+-- REGISTERED POPULATION: Practice population counts for all Norfolk & Waveney GP practices
+-- Returns OrganisationName and RegisteredPopulation for reporting and per-capita calculations
+
+SELECT DISTINCT
+    "OrganisationName",
+    "RegisteredPopulation"
+FROM DATA_HUB.DWH."DimOrganisationAndSite"
+WHERE "IsSiteNorfolkAndWaveney" = 'Yes'
+    AND "IsSiteActive" = 'Yes'
+    AND "OrganisationSubType" = 'GP Practice'
+    AND "OrganisationName" <> 'Vulnerable Adults Service'
+ORDER BY "OrganisationName"