Loop, Auto Update

Hi,

I am back with some more questions.

The structure is something like this -

Table 1 - dbo.DimHC_Team - This stores TeamID and TeamName
Table 2 - dbo.DimHC_Team_Config - This has TeamID TeamDate (not really used anywhere) TeamHeadCount (Max strength of a team)

Table 3 - dbo.DimHC_Team_Agg - This has TeamID, Team_Date (1st of every month, so that when I see the data for past months I use these dates) , Permanent Employees, Contracted employees, Open positions, Total, HeadCount.

Now, I have a stored procedure which goes like this -



declare @datevar datetime
declare @datevar2 datetime
declare @datevar3 datetime
declare @datevar4 datetime
select @datevar = DATEADD(dd, -(Day(getdate()) -1) ,getdate())
select @datevar = dateadd(dd, datediff(d,0,@datevar),0)
select @datevar2 = Dateadd(m , 1 , @datevar)
select @datevar4 = Dateadd(dd , 9 , @datevar2)
select @datevar3 = dateadd(m,2,@datevar)
select @datevar3 = dateadd(dd, -2 , @datevar3)


if (not exists (select * from dbo.DimHC_Team_Agg where Team_Date = @datevar2))
begin

insert into dbo.DimHC_Team_Agg
(TeamID, Team_Date)
select TeamID , @datevar2 from dbo.DimHC_Team_Config
end

update dbo.DimHC_Team_Agg
set Team_Head_Count = dbo.DimHC_Team_Config.Team_Head_Count
from dbo.DimHC_Team_Config, dbo.DimHC_Team_Agg
where dbo.DimHC_Team_Agg.Team_Date = @datevar2
and dbo.DimHC_Team_Config.TeamID = dbo.DimHC_Team_Agg.TeamID

update dbo.DimHC_Team_Agg
set
Perm_Posn = (select count(EmpType) from dbo.uview_DimHC_Emp_view1
where EmpStartDate < = @datevar4 and EmpType = 'Permanent'
and (EmpEndDate = '01/01/1753' or EmpEndDate > @datevar3)
and TeamID = '1'),
Contract_Posn = (select count(EmpType) from dbo.uview_DimHC_Emp_view1
where EmpStartDate < = @datevar4 and EmpType = 'Contractor'
and (EmpEndDate = '01/01/1753' or EmpEndDate > @datevar3)
and TeamID = '1')
......


What this block is doing is converting today's date to the first of this month. Going one month and 2 months in advance. Then it checks if any employee's start date < 10th of the next month and end date > 31st of the next month and if both the conditions are met then increments the employee count for that team as 1.

This TeamID is then repeated for 13 teams that I have right now. So that every month I will run it and it will update.

Now, I have 2 problems - First being that I had to write this block for 13 teams which isn't really a smart thing to do. Let's say I add a team tomorrow then I will need to modify this stored procedure and then tomorrow I may not be here, so the person who uses it should be able to do it easily. So, I wanted to know if I can loop or something through this with the max limit of TeamID coming from some external source and not like fix it to 20 or something.

Second, let's say in the beginning of this month I add a new team. The way I will do it is I will add it to dbo.DimHC_Team and dbo.DimHC_Team_Config table. Now, if I run this stored procedure then

if (not exists (select * from dbo.DimHC_Team_Agg where Team_Date = @datevar2))

is not going to return NULL as there will be entries with some teams right now. So this new Team won't be inserted in the dbo.DimHC_Team_Agg table and I will have to manually do it.

Can somebody help me as to how can I get over with these two problems?

Sorry for being really long but I thought it best to give all the details.