How to make join to teams display without join all teams ?

Question

How to make left join to only teams displayed dynamically depend on fields exist on @selectedcolumncomma ?

i work on SQL server 2012 my problem how to generate join dynamically based on teams displayed without writing all

 

relations to all teams and my be result two teams only

 

on my situation below i make left join to 7 teams because may be one team from 7 come

 

so actually i need left join dynamically based on column generated dynamically

 

so if i one team displayed to lifecycle then one left join to lifecycle

 

so if i two team displayed to lifecycle and crosspart as my sample then two left join to lifecycle and crosspart

create table #tempVariables
(
DocumentId int
)
insert into #tempVariables(DocumentId) values (22490)
create table #Teams
(
TeamId int,
TeamName nvarchar(50),
ColumnName  nvarchar(100)
)
insert into #teams
values
(1,'Package','Package'),
(2,'Parametric','Parametric'),
(3,'Scribing','Scribing'),
(4,'Lifecycle','Lifecycle'),
(5,'OBS','OBS'),
(6,'Cross','CrossPart'),
(7,'Rohs','Rohs')

create table #DocumentTeams
(
DocumentTeamId int identity(1,1),
DocumentId int,
TeamId nvarchar(50)
)
insert into #DocumentTeams(DocumentId,TeamId)
values
(22490,4),
(22490,6),
(22491,1),
(22491,5),
(22491,7)

Create table #FlowStatus
(
FlowStatusID int,
FlowStatus  nvarchar(100)
)
insert into #FlowStatus
values
(1, 'Pending'),
(2, 'InProgress'),
(3, 'Done')
create table #DocumentPartTeams
(
DocumentPartTeamsId int,
PartId  int,
DocumentId int,
Package  int,
Parametric int,
Scribing int,
Lifecycle int,
OBS int,
CrossPart int,
Rohs int

)
insert into #DocumentPartTeams

(PartId,DocumentId,Package,Parametric,Scribing,Lifecycle,OBS,CrossPart,Rohs)
values
(1000,22490,null,null,null,1,null,1,null),
(1002,22490,null,null,null,1,null,1,null),
(1005,22491,2,null,null,null,2,null,2),
(1008,22491,2,null,null,null,2,null,1)

select dt.DocumentID,dt.TeamID, t.TeamName,t.ColumnName into #GetDocumentTeams from
#DocumentTeams dt
inner join #Teams t  on t.TeamID=dt.TeamID
inner join #tempVariables tv on tv.DocumentId=dt.DocumentId
SELECT distinct ColumnName INTO #COLUMNS FROM #GetDocumentTeams
select t.TeamId,c.ColumnName into #indexedColumns from #COLUMNS c inner join pcn.Teams t
on t.ColumnName=c.ColumnName
declare @SeletColumnComma varchar(max)
select @SeletColumnComma = coalesce(@SeletColumnComma + ',','') + coalesce('fs' +cast
(teamid as nvarchar(20)) + '.FlowStatus as ' + ColumnName + 'Status','') from
#indexedColumns
select @SeletColumnComma
---------------
DECLARE @query nvarchar(max)
SET @query='
select distinct dpt.PartId,' + @SeletColumnComma + ' from #DocumentPartTeams dpt
inner join #GetDocumentTeams gdt on gdt.DocumentID=dpt.DocumentID
inner join #tempVariables tv on tv.DocumentId = dpt.DocumentId
left join #FlowStatus fs1  on dpt.Package=fs1.FlowStatusID
left join #FlowStatus fs2  on dpt.Parametric=fs2.FlowStatusID
left join #FlowStatus fs3  on dpt.Scribing=fs3.FlowStatusID
left join #FlowStatus fs4  on dpt.Lifecycle=fs4.FlowStatusID
left join #FlowStatus fs5  on dpt.OBS=fs5.FlowStatusID
left join #FlowStatus fs6  on dpt.CrossPart=fs6.FlowStatusID
left join #FlowStatus fs7  on dpt.Rohs=fs7.FlowStatusID
 '

exec (@query)

drop table #teams
drop table #DocumentTeams
drop table #FlowStatus
drop table #DocumentPartTeams
drop table #COLUMNS
drop table #indexedColumns
drop table #tempVariables
drop table #GetDocumentTeams





Result displayed

PartId  LifecycleStatus CrossPartStatus
1000    Pending           Pending
1002    Pending           Pending
so left join or inner join i needed to be only teams displayed dynamically

so how to make that please