Create more than one column in pivot table with one sql statement

I need to sort by date in pivot table project data for the same project number

The project looks like this:

"Project nr"   "Task"                "Task deadline"  "Task Type Production"
123             pack                  1 april 2013    Pack
123             Leave production      3 april 2013    Leave Production
123             Flight date           9 april 2013    Flight Date

      

The "issue type" is created to ensure that the field content is always constant. I can only create one column in a pivot table. Is there any way to display information in 3 columns it would look like this:

Project nr ;  Pack   ;  leave production ; flightdate   


SELECT  [TaskDeadline] AS Packed
FROM         MSP_EpmTask_UserView where  [Task Type Production] = 'Packed'
SELECT  [TaskDeadline] AS LeaveProduction
FROM         MSP_EpmTask_UserView where  [Task Type Production] =  'Leave Production' 
SELECT  [TaskDeadline] AS FlightDate
FROM         MSP_EpmTask_UserView where  [Task Type Production] =  'Flight Date'

      

Thanks Ann

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2 answers


This can be easily done using an aggregate function and an expression CASE

:

select  [Project nr],
    MAX(case when [Task Type Production] = 'Pack' then [Task deadline] end) as Pack,
    MAX(case when [Task Type Production] = 'Leave Production' then [Task deadline] end) as [Leave Production],
    MAX(case when [Task Type Production] = 'Flight Date' then [Task deadline] end) as [Flight Date]
from MSP_EpmTask_UserView 
group by    [Project nr]

      

See SQL Fiddle with Demo

If you want to use a function PIVOT

in SQL Server, the query would look like this:

select *
from
(
  select [Project nr],[Task deadline], [Task Type Production]
  from MSP_EpmTask_UserView 
) src
pivot
(
  max([Task deadline])
  for [Task Type Production] in ([Pack], [Leave Production],
                                 [Flight Date])
) piv

      

See SQL Fiddle with Demo .



Finally, this can be done using multiple joins in your table:

select t1.[Project nr],
  t1.[Task deadline] pack,
  t2.[Task deadline] [Leave Production],
  t3.[Task deadline] [Flight Date]
from MSP_EpmTask_UserView t1
left join MSP_EpmTask_UserView t2
  on t1.[Project nr] = t2.[Project nr]
  and t2.[Task Type Production] = 'Leave Production'
left join MSP_EpmTask_UserView  t3
  on t1.[Project nr] = t3.[Project nr]
  and t3.[Task Type Production] = 'Flight Date'
where t1.[Task Type Production] = 'Pack'

      

See SQL Fiddle with Demo

The result of all requests is:

| PROJECT NR |       PACK | LEAVE PRODUCTION | FLIGHT DATE |
------------------------------------------------------------
|        123 | 2013-04-01 |       2013-04-03 |  2013-04-09 |

      

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You can try to create a cross tab or pivot using the traditional correlated subquery method:

select [Project nr]
    , (select [Task deadline] from MSP_EpmTask_UserView where [Project nr] = t.[Project nr] and [Task Type Production] = 'Pack') as Pack
    , (select [Task deadline] from MSP_EpmTask_UserView where [Project nr] = t.[Project nr] and [Task Type Production] = 'Leave Production') as [Leave Production]
    , (select [Task deadline] from MSP_EpmTask_UserView where [Project nr] = t.[Project nr] and [Task Type Production] = 'Flight Date') as [Flight Date]
from MSP_EpmTask_UserView t
group by [Project nr]
order by [Project nr]

/*
Project nr  Pack       Leave Production Flight Date
----------- ---------- ---------------- -----------
123         2013-04-01 2013-04-03       2013-04-09
*/

      



I did this in SQL Server 2008 which has a nice datatype date

, although you can certainly do it with bites or datetime. It also assumes that there is only one of the dates for a specific project nr.

Also, if possible, try not to put spaces or other special characters in database object names that force you to delimit them with parentheses.

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