TRANSFORM Avg(CASE WHEN [temp].[sumUnits] > 0
THEN [temp].[SumAvgRent] / [temp].[sumUnits]
ELSE 0
END) AS Expr1
SELECT [temp].[Description]
FROM [temp]
GROUP BY [temp].[Description]
PIVOT [temp].[Period];
Need to convert this query for sql server
I have read all other posts but unable to convert this into the same
Here is the equivalent version using the PIVOT
table operator:
SELECT *
FROM
(
SELECT
CASE
WHEN sumUnits > 0
THEN SumAvgRent / sumUnits ELSE 0
END AS Expr1,
Description,
Period
FROM temp
) t
PIVOT
(
AVG(Expr1)
FOR Period IN(Period1, Period2, Period3)
) p;
For instance, this will give you:
| DESCRIPTION | PERIOD1 | PERIOD2 | PERIOD3 |
---------------------------------------------
| D1 | 10 | 0 | 20 |
| D2 | 100 | 1000 | 0 |
| D3 | 50 | 10 | 2 |
Note that When using the MS SQL Server PIVOT
table operator, you have to enter the values for the pivoted column. However, IN MS Access, This was the work that TRANSFORM
with PIVOT
do, which is getting the values of the pivoted column dynamically. In this case you have to do this dynamically with the PIVOT
operator, like so:
DECLARE @cols AS NVARCHAR(MAX);
DECLARE @query AS NVARCHAR(MAX);
SELECT @cols = STUFF((SELECT distinct
',' +
QUOTENAME(Period)
FROM temp
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'');
SET @query = ' SELECT Description, ' + @cols + '
FROM
(
SELECT
CASE
WHEN sumUnits > 0
THEN SumAvgRent / sumUnits ELSE 0
END AS Expr1,
Description,
Period
FROM temp
) t
PIVOT
(
AVG(Expr1)
FOR Period IN( ' + @cols + ')
) p ';
Execute(@query);
This should give you the same result:
| DESCRIPTION | PERIOD1 | PERIOD2 | PERIOD3 |
---------------------------------------------
| D1 | 10 | 0 | 20 |
| D2 | 100 | 1000 | 0 |
| D3 | 50 | 10 | 2 |