December 18, 2014 at 12:36 pm
Hi, I have a table similar to the one below, I need to unpivot the table to that there would be 4 column, and a row would look like
The other issue, I'm facing is that there is an unknown number of rows, so I will somehow have to create a dynamic comma delimited list of column names from the table.
If anyone has a script to do this would be super appreciated!
~thank you in advance
PeriodType, PeriodValue, AgentNo, Metric, Value
Year 2014 EY57627 Metric1 1833
Year 2014 EY57627 Metric2 609.87
Year 2014 EY57627 Metric3 0.804878
IF OBJECT_ID('TempDB..#mytable','U') IS NOT NULL
DROP TABLE #mytable
--===== Create the test table with
CREATE TABLE #mytable
(
PeriodType Varchar(50),
PeriodValue varchar(50),
AgentNo varchar(10),
Metric1 varchar(50),
Metric2 varchar(50),
Metric3 varchar(50)
)
insert into #mytable
(PeriodType, PeriodValue, AgentNo, Metric1, Metric2, Metric3)
SELECT 'Year','2014','EY57627','1833','609.87','0.804878' UNION ALL
SELECT 'Year','2014','EY37480','11784','401.413','0.833333' UNION ALL
SELECT 'Year','2014','EY37715','0','0','0' UNION ALL
SELECT 'Year','2014','6069748','8242','479.842','0.857542' UNION ALL
SELECT 'Year','2014','ex51539','0','0','0' UNION ALL
SELECT 'Year','2014','6071493','4833','594.724','0.7866' UNION ALL
SELECT 'Year','2014','EY58441','0','0','0' UNION ALL
SELECT 'Year','2014','EY46081','0','0','0' UNION ALL
SELECT 'Year','2014','EY38615','910','729.865','0.707865' UNION ALL
SELECT 'Year','2014','EY38864','3786','402.036','0.869674' UNION ALL
SELECT 'Year','2014','EY35608','824','886.701','0.791667' UNION ALL
SELECT 'Year','2014','EY53571','37','904.568','0.75' UNION ALL
SELECT 'Year','2014','EY11014','0','0','0' UNION ALL
SELECT 'Year','2014','EY13297','537','583.872','0.877193' UNION ALL
SELECT 'Year','2014','6010922','597','607.787','0.770833' UNION ALL
SELECT 'Year','2014','6027444','5255','299.85','0' UNION ALL
SELECT 'Year','2014','6027814','5830','678.576','0.709125' UNION ALL
SELECT 'Year','2014','EY54924','801','600.402','0.631579' UNION ALL
SELECT 'Year','2014','EY35642','2693','613.134','0.773913' UNION ALL
SELECT 'Year','2014','EY57364','0','0','0' UNION ALL
SELECT 'Year','2014','6072995','707','544.037','0.766667' UNION ALL
SELECT 'Year','2014','EY24392','9110','392.218','0.817299' UNION ALL
SELECT 'Year','2014','EY44314','5908','734.806','0.808905' UNION ALL
SELECT 'Year','2014','EY39344','7352','520.189','0.820922' UNION ALL
SELECT 'Year','2014','EX89538','5931','423.479','0.75'
December 18, 2014 at 2:33 pm
Ok, I came across this script below, but I am getting the following error, is there any way to resolve this?
Query generated:
SELECT *
FROM dbo.t_OutlierCalc_BM
UNPIVOT (
value FOR code IN (
[PeriodType], [PeriodValue], [emp_no], [CallsHandled], [AverageHandlingTime], [CsatTop2], [CsatBottom2], [ResolutionTop2], [ResolutionBottom2], [FCR_7], [FCR_7_WithTransfer]
)
) unpiv
The type of column "PeriodValue" conflicts with the type of other columns specified in the UNPIVOT list.
DECLARE @table_name SYSNAME
SELECT @table_name = 'dbo.t_OutlierCalc_BM'
DECLARE @SQL NVARCHAR(MAX)
SELECT @SQL = '
SELECT *
FROM ' + @table_name + '
UNPIVOT (
value FOR code IN (
' + STUFF((
SELECT ', [' + c.name + ']'
FROM sys.columns c WITH(NOLOCK)
LEFT JOIN (
SELECT i.[object_id], i.column_id
FROM sys.index_columns i WITH(NOLOCK)
WHERE i.index_id = 1
) i ON c.[object_id] = i.[object_id] AND c.column_id = i.column_id
WHERE c.[object_id] = OBJECT_ID(@table_name)
AND i.[object_id] IS NULL
FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'), 1, 2, '') + '
)
) unpiv'
PRINT @SQL
EXEC sys.sp_executesql @SQL
December 18, 2014 at 6:09 pm
Why not CROSS APPLY VALUES instead?
WITH YourTable (PeriodType, PeriodValue, AgentNo, Metric1, Metric2, Metric3) AS
(
SELECT 'Year','2014','EY57627','1833','609.87','0.804878' UNION ALL
SELECT 'Year','2014','EY37480','11784','401.413','0.833333' UNION ALL
SELECT 'Year','2014','EY37715','0','0','0' UNION ALL
SELECT 'Year','2014','6069748','8242','479.842','0.857542' UNION ALL
SELECT 'Year','2014','ex51539','0','0','0' UNION ALL
SELECT 'Year','2014','6071493','4833','594.724','0.7866' UNION ALL
SELECT 'Year','2014','EY58441','0','0','0' UNION ALL
SELECT 'Year','2014','EY46081','0','0','0' UNION ALL
SELECT 'Year','2014','EY38615','910','729.865','0.707865' UNION ALL
SELECT 'Year','2014','EY38864','3786','402.036','0.869674' UNION ALL
SELECT 'Year','2014','EY35608','824','886.701','0.791667' UNION ALL
SELECT 'Year','2014','EY53571','37','904.568','0.75' UNION ALL
SELECT 'Year','2014','EY11014','0','0','0' UNION ALL
SELECT 'Year','2014','EY13297','537','583.872','0.877193' UNION ALL
SELECT 'Year','2014','6010922','597','607.787','0.770833' UNION ALL
SELECT 'Year','2014','6027444','5255','299.85','0' UNION ALL
SELECT 'Year','2014','6027814','5830','678.576','0.709125' UNION ALL
SELECT 'Year','2014','EY54924','801','600.402','0.631579' UNION ALL
SELECT 'Year','2014','EY35642','2693','613.134','0.773913' UNION ALL
SELECT 'Year','2014','EY57364','0','0','0' UNION ALL
SELECT 'Year','2014','6072995','707','544.037','0.766667' UNION ALL
SELECT 'Year','2014','EY24392','9110','392.218','0.817299' UNION ALL
SELECT 'Year','2014','EY44314','5908','734.806','0.808905' UNION ALL
SELECT 'Year','2014','EY39344','7352','520.189','0.820922' UNION ALL
SELECT 'Year','2014','EX89538','5931','423.479','0.75'
)
SELECT PeriodType, PeriodValue, AgentNo, Metric, Value
FROM YourTable a
CROSS APPLY
(
VALUES('Metric1', Metric1),('Metric2', Metric2),('Metric3', Metric3)
) b (Metric, Value);
http://qa.sqlservercentral.com/articles/CROSS+APPLY+VALUES+UNPIVOT/91234/
My thought question: Have you ever been told that your query runs too fast?
My advice:
INDEXing a poor-performing query is like putting sugar on cat food. Yeah, it probably tastes better but are you sure you want to eat it?
The path of least resistance can be a slippery slope. Take care that fixing your fixes of fixes doesn't snowball and end up costing you more than fixing the root cause would have in the first place.
Need to UNPIVOT? Why not CROSS APPLY VALUES instead?[/url]
Since random numbers are too important to be left to chance, let's generate some![/url]
Learn to understand recursive CTEs by example.[/url]
[url url=http://www.sqlservercentral.com/articles/St
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