How to update/Edit table through CSVs? - sql-server-2008

Question

I stored 2 contact numbers in a table corresponding to one companyID in companycontactno. table. I did that using extracting values from CSV in Stored procedure.
If I want to edit those contact numbers Corresponding to company ID how am I going to do that?
This is the storedProcedure I will use for editing contact numbers .. I am having difficulty in updating it .. please help
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
CREATE PROCEDURE dbo.EditCompanyDetails
(
#OldCompanyName varchar(max),
#NewCompanyName varchar(max),
#newAddress varchar(max),
#newMailID varchar(max),
#Temp varchar(8000)
)
AS
BEGIN
SET NOCOUNT ON;
declare #compID int
DECLARE #c int, #a varchar(max), #id int, #variable varchar(8000), #max int
DECLARE #Temp_Table table (serial_no int Identity(1,1), value varchar(max))
--PROCEDURE--
--Editing Company Table--
set #compID=(Select Company.CompanyID from Company where Company.CompanyName=#OldCompanyName)
update Company
set CompanyName=#NewCompanyName, [Address]=#newAddress, Email=#newMailID
where Company.CompanyID=#compID
--For CONTACT NUMBERS
--Using Table to store CSV seperately in each row--
select #c = CHARINDEX(',', #Temp)
while #c > 0
BEGIN
insert into #Temp_Table
select LEFT(#Temp, #c - 1)
select #Temp = right(#Temp, LEN(#Temp) - #c)
select #c = CHARINDEX(',', #Temp)
END
--Update Table CompanyContactNo
--CompanyContactNo have following Columns:
--CNoID (PK)
--CompanyID (references PK in Company table
--ContactNumber
set #max= (select MAX(serial_no) from #Temp_Table)
while #max > 0
BEGIN
set #variable = (select value from #Temp_Table where serial_no=#max)
update CompanyContactNo
set ContactNumber=#variable
where CompanyID=#compID
set #max = #max-1
END
End
GO

Answer 1

Assuming you will only have 2 rows, and you know that there are 2 contact rows in the CompanyContactNo table, you could execute 2 Update statements that would each affect a different row:
UPDATE CompanyContactNo
Set ContactNumber=
(SELECT value FROM #Temp_Table WHERE serial_no = (SELECT MAX(serial_no) FROM #Temp_Table))
WHERE
CompanyID=#compID
AND (CNoId = select MAX(CNoId) FROM CompanyContactNo WHERE CompanyID = #compID)
and then for second contact number:
UPDATE CompanyContactNo
SET ContactNumber=
(SELECT value FROM #Temp_Table WHERE serial_no = (SELECT MIN(serial_no) FROM #Temp_Table))
WHERE
CompanyID=#compID
AND (CNoId = select MIN(CNoId) FROM CompanyContactNo WHERE CompanyID = #compID)