SQL query to get Map Id on passing Id value - sql-server

Question

Id InvID InvDate OriginalInvID FilterDesc
1 1 2017-03-01 00:00:00.000 0 First Inv Created
2 2 2017-03-06 00:00:00.000 1 Link ID
3 3 2017-03-01 00:00:00.000 0 First Inv Created
4 4 2017-03-03 00:00:00.000 3 Link ID
5 5 2017-03-06 00:00:00.000 4 Second Inv Created on top of MapID
6 6 2017-03-01 00:00:00.000 0 First Inv Created
7 7 2017-03-03 00:00:00.000 6 Link ID
8 8 2017-03-05 00:00:00.000 7 Second In Created on top of Map Id
9 9 2017-03-06 00:00:00.000 8 Second Inv Created on top of Map Id
Hi, in above table I have to pass invId and I need result with map Id who is in OriginalInvID column.
For example:
If I pass 1 then I get 1 & 2 invId
If i pass 4 then I get 3,4,5
If i pass 8 then I get 6,7,8,9 like this way

Answer 1

If I understood what you want, I think you wanted a query like this:
declare #InvId int = 8;
with cte(Id, InvID, InvDate, OriginalInvID) as (
select *
from yourTable
where OriginalInvID = #InvId
union all
select t.*
from yourTable t join cte on t.InvId = cte.OriginalInvID
)
select *
from cte
order by Id;

Answer 2

You can use a while loop to fetch father and children nodes storing them in temp tables:
declare #myInvId int
declare #father_counter int
declare #children_counter int
declare #temp table (Id int, InvID int, InvDate datetime, OriginalInvID int, FilterDesc nvarchar(100))
declare #fathers table(id int, status int)
declare #children table(id int, status int)
insert into #temp
select 1, 1, '2017-03-01 00:00:00.000', 0, 'First Inv Created'
union all select 2, 2, '2017-03-06 00:00:00.000', 1, 'Link ID'
union all select 3, 3, '2017-03-01 00:00:00.000', 0, 'First Inv Created'
union all select 4, 4, '2017-03-03 00:00:00.000', 3, 'Link ID'
union all select 5, 5, '2017-03-06 00:00:00.000', 4, 'Second Inv Created on top of MapID'
union all select 6, 6, '2017-03-01 00:00:00.000', 0, 'First Inv Created'
union all select 7, 7, '2017-03-03 00:00:00.000', 6, 'Link ID'
union all select 8, 8, '2017-03-05 00:00:00.000', 7, 'Second In Created on top of Map Id'
union all select 9, 9, '2017-03-06 00:00:00.000', 8, 'Second Inv Created on top of Map Id'
--set input parameter
set #myInvId = 8
--init counters
set #father_counter = 1
set #children_counter = 1
--insert starting node
insert into #fathers select InvID,0 from #temp where OriginalInvID = #myInvId
insert into #children select OriginalInvID,0 from #temp where InvID = #myInvId
--loop on table
while (#father_counter + #children_counter) > 0
begin
--fetch father nodes
insert into #fathers select InvID, 1 from #temp where OriginalInvID in (select id from #fathers where status=0)
--update fathers' status
update #fathers set status = 2 where status = 0
update #fathers set status = 0 where status = 1
--fetch children nodes
insert into #children select OriginalInvID, 1 from #temp where InvID in (select id from #children where status=0)
--update children's status
update #children set status = 2 where status = 0
update #children set status = 0 where status = 1
--update counters
select #father_counter = count(*) from #fathers where status = 0
select #children_counter = count(*) from #children where status = 0
end
select #myInvId
union
select id from #fathers
union
select c.id from #children c inner join #temp t on c.id = t.InvID