如何在 Microsoft SQL 服务器中创建 pivot 表？

Question

First question on Stack overflow. I work for a medical testing firm and they need a table that shows how many people in each state received each type of test in 2021. I have all the states in my adr.state table and all the test types in my p.name table.

I wrote the following query:

SELECT
    adr.state,
    'TaqPath COVID-19 rRT-PCR Assay',
    'TaqPath COVID-19 rRT-PCR Assay (Saliva Specimen)',
    'TaqPath COVID-19 rRT-PCR Assay (Throat Specimen)',
    'Beckman Access SARS-CoV-2 IgG Test',
    'PSA, Free',
    'Colorectal Cancer Current Risk'
FROM
    (SELECT DISTINCT 
         r.requisitionNumber,
         adr.state,
         p.name
     FROM
         copia.copia.Requisition AS r
     JOIN
         copia.copia.OrderedPanel AS op ON op.requisitionKey = r.requisitionKey
     JOIN
         copia.copia.panel AS p ON p.panelKey = op.panelKey
     JOIN
         copia.copia.Location AS loc ON loc.locationKey = r.orderingLocationKey
     JOIN
         copia.copia.Address AS adr ON adr.addressKey = loc.addressKey
     WHERE
         copia.dbo.FixDate(r.finalDeliveryStamp) BETWEEN '1/1/2021' AND '4/24/2021'
         AND p.name NOT LIKE '%body mass index%'
         AND p.name NOT LIKE '%hold account%') p 
    PIVOT 
        (SUM(adr.state) 
            FOR p.name IN (['TaqPath COVID-19 rRT-PCR Assay'],
                           ['TaqPath COVID-19 rRT-PCR Assay (Saliva Specimen)'],
                           ['TaqPath COVID-19 rRT-PCR Assay (Throat Specimen)'],
                           ['Beckman Access SARS-CoV-2 IgG Test'],
                           ['PSA, Free'],
                           ['Colorectal Cancer Current Risk'])
        ) AS PVT;

What am I doing wrong? I get these errors:

Msg 107, Level 15, State 1, Line 34
The column prefix 'adr' does not match with a table name or alias name used in the query.

Msg 4104, Level 16, State 1, Line 2
The multi-part identifier "adr.state" could not be bound.

In review, what I need is a matrix where the columns are the test names and the rows are each type of state, where the values are the sum of test types that match that state.

Thank you so much!

Answer 1

In your outer query adr will not be recognized. Instead use state only:

SELECT
     state,
    'TaqPath COVID-19 rRT-PCR Assay',
    'TaqPath COVID-19 rRT-PCR Assay (Saliva Specimen)',
    'TaqPath COVID-19 rRT-PCR Assay (Throat Specimen)',
    'Beckman Access SARS-CoV-2 IgG Test',
    'PSA, Free',
    'Colorectal Cancer Current Risk'
FROM
    (SELECT DISTINCT 
         r.requisitionNumber,
         adr.state,
         p.name
     FROM
         copia.copia.Requisition AS r
     JOIN
         copia.copia.OrderedPanel AS op ON op.requisitionKey = r.requisitionKey
     JOIN
         copia.copia.panel AS p ON p.panelKey = op.panelKey
     JOIN
         copia.copia.Location AS loc ON loc.locationKey = r.orderingLocationKey
     JOIN
         copia.copia.Address AS adr ON adr.addressKey = loc.addressKey
     WHERE
         copia.dbo.FixDate(r.finalDeliveryStamp) BETWEEN '1/1/2021' AND '4/24/2021'
         AND p.name NOT LIKE '%body mass index%'
         AND p.name NOT LIKE '%hold account%') p 
    PIVOT 
        (SUM(adr.state) 
            FOR p.name IN (['TaqPath COVID-19 rRT-PCR Assay'],
                           ['TaqPath COVID-19 rRT-PCR Assay (Saliva Specimen)'],
                           ['TaqPath COVID-19 rRT-PCR Assay (Throat Specimen)'],
                           ['Beckman Access SARS-CoV-2 IgG Test'],
                           ['PSA, Free'],
                           ['Colorectal Cancer Current Risk'])
        ) AS PVT;