Using pivot table with column and row totals in sql server 2008

Question

I have a table with following columns

defect_id, developer_name, status, summary, root_cause, 
Secondary_RC, description, Comments, environment_name
         


        

Answer 1

You can find Total for root_cause and environment_name using ROLLUP.

• RNO_COLTOTAL - Logic to place Total in last column, since the columns Tsc,Unkn will overlap the column Total when pivoting, since its ordering alphabetically.
• RNO_ROWTOTAL - Logic to place Total in last row since a value that is starting with U,W,X,Y,Z can overlap the value Total, since its ordering alphabetically.
• SUM(VALUE) - Can define on what aggregate function we can use with ROLLUP.

QUERY 1

SELECT CASE WHEN root_cause IS NULL THEN 1 ELSE 0 END RNO_COLTOTAL, 
CASE WHEN environment_name IS NULL THEN 1 ELSE 0 END RNO_ROWTOTAL,
ISNULL(environment_name,'Total')environment_name,
ISNULL(root_cause,'Total')root_cause,
SUM(VALUE) VALUE
INTO #NEWTABLE
FROM
(
    -- Find the count for environment_name,root_cause
    SELECT DISTINCT *,COUNT(*) OVER(PARTITION BY environment_name,root_cause)VALUE 
    FROM #TEMP
)TAB
GROUP BY root_cause,environment_name
WITH CUBE

We will get the following logic when CUBE is used

We declare variables for pivoting.

• @cols - Column values for pivoting.
• @NulltoZeroCols - Replace null values with zero.

QUERY 2

DECLARE @cols NVARCHAR (MAX)

SELECT @cols = COALESCE (@cols + ',[' + root_cause + ']', 
               '[' + root_cause + ']')
               FROM    (SELECT DISTINCT RNO_COLTOTAL,root_cause FROM #NEWTABLE) PV 
               ORDER BY  RNO_COLTOTAL,root_cause 

DECLARE @NulltoZeroCols NVARCHAR (MAX)

SET @NullToZeroCols = SUBSTRING((SELECT ',ISNULL(['+root_cause+'],0) AS ['+root_cause+']' 
FROM(SELECT DISTINCT RNO_COLTOTAL,root_cause FROM #NEWTABLE GROUP BY RNO_COLTOTAL,root_cause)TAB  
ORDER BY RNO_COLTOTAL  FOR XML PATH('')),2,8000) 

Now pivot it dynamically

DECLARE @query NVARCHAR(MAX)
SET @query = 'SELECT environment_name,'+ @NulltoZeroCols +' FROM 
             (
                 SELECT RNO_ROWTOTAL,environment_name,root_cause,VALUE
                 FROM #NEWTABLE
             ) x
             PIVOT 
             (
                 MIN(VALUE)
                 FOR [root_cause] IN (' + @cols + ')
            ) p
            ORDER BY RNO_ROWTOTAL,environment_name;' 

EXEC SP_EXECUTESQL @query

RESULT