Count number of distinct values for a column for all tables that contains that column

Question

Imagine I have one Column called cdperson. With the query below I know which Tables have column cdperson
select
t.[name]fromsys.schemassinnerjoin 
sys.tables 
tons.schema_id=t.schema_idinnerjoin 
sys.columnscont.object_id=c.object_idinnerjoin 
sys.types  
donc.user_type_id=d.user_type_idwherec.name ='cdperson'
now I want to know for each table, how many distinct values of cdperson I have and I want the result ordered by the table that has more distinct values (descending)
Table1                                                                                     
   cdperson                        select distinct(cdperson) = 10
   cdadress
   quant
Table2 with 
   cdaddress                      (no column cdperson in this table)
   quant
Table3
   cdperson                        select distinct(cdperson) = 100
   value
Table 4
   cdperson                        select distinct(cdperson) = 18
   sum
I want this result ordered by number of distinct cdperson
table3   100
table4   18
table    10
Thks for your answers

Answer 1

I had to add schema name to the above script to make it work in AdventureWorks:
CREATE TABLE #temp(TableName sysname , CNT BIGINT)
DECLARE @QRY NVARCHAR(MAX);
SET @qry=(SELECT
N'INSERT INTO #TEMP SELECT '''+schema_name(t.schema_id)+'.'+T.[name] +''' AS TableName, COUNT (DISTINCT ProductID) DistCount FROM '+
schema_name(t.schema_id)+'.'+t.[name] +';'
FROM sys.schemas s INNER JOIN sys.tables t ON s.schema_id=t.SCHEMA_ID
INNER JOIN sys.columns c ON t.object_id=c.object_id INNER JOIN sys.types d ON c.user_type_id=d.user_type_id
WHERE c.name ='ProductID'
FOR XML PATH(''))
EXEC(@QRY)
SELECT * FROM #temp ORDER BY TableName
DROP TABLE #temp
Production.Product 504
Production.ProductCostHistory 293
Production.ProductDocument 31
Production.ProductInventory 432
Production.ProductListPriceHistory 293
Production.ProductProductPhoto 504
Production.ProductReview 3
Production.TransactionHistory 441
Production.TransactionHistoryArchive 497
Production.WorkOrder 238
Production.WorkOrderRouting 149
Purchasing.ProductVendor 211
Purchasing.PurchaseOrderDetail 211
Sales.SalesOrderDetail 266
Sales.ShoppingCartItem 3
Sales.SpecialOfferProduct 295
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