Retrieve values from database through stored procedure - sql-server

Question

I have this database with table 'crigsStaffActivity'. I managed to retrieve the values and display it. But the result is not showing as my expectation.
Script to create table with values
CREATE TABLE [dbo].[crigsStaffActivity]
(
[projectRef] [varchar](200) NOT NULL,
[activityLine] [int] NOT NULL,
[cost] [real] NOT NULL,
[staffCost] [varchar](500) NOT NULL
) ON [PRIMARY]
GO
INSERT [dbo].[crigsStaffActivity] ([projectRef], [activityLine], [cost], [staffCost])
VALUES (N'MRC/CRIGS/330', 1, 1, N'ProjectLeader'),
(N'MRC/CRIGS/330', 2, 2, N'Research Collaborators'),
(N'MRC/CRIGS/330', 1, 1, N'Project Collaborators'),
(N'MRC/CRIGS/330', 2, 2, N'Project Collaborators'),
(N'MRC/CRIGS/330', 2, 3, N'Research/Project Assistant');
ALTER TABLE [dbo].[crigsStaffActivity]
ADD CONSTRAINT [DF__crigsStaff__cost__5535A963] DEFAULT ((0)) FOR [cost]
GO
Screenshot of table:
My stored procedure:
ALTER PROCEDURE [dbo].[getCrigsStaffActivity]
#ProjectRef AS VARCHAR(1000),
#staffCost AS varchar(1000)
AS
BEGIN
SET NOCOUNT ON;
DECLARE #val AS VARCHAR(2000);
SET #val='';
DECLARE #temp AS VARCHAR(2000);
DECLARE #activityLine AS VARCHAR(2000);
DECLARE #cost AS VARCHAR(2000);
DECLARE #ref as CURSOR;
SET #ref = CURSOR FOR
SELECT activityLine, cost
FROM crigsStaffActivity
WHERE projectRef = #ProjectRef
AND staffCost = #staffCost
OPEN #ref;
FETCH NEXT FROM #ref INTO #activityLine, #cost;
WHILE ##FETCH_STATUS = 0
BEGIN
FETCH NEXT FROM #ref INTO #activityLine, #cost;
SET #val = CONCAT(#activityLine,',',#cost);
END
CLOSE #ref;
DEALLOCATE #ref;
SELECT #val AS ref;
END
When I execute the stored procedure, I get this result:
ref
----
2,2
The issue is that for project collaborators I have two repeating values, thus I need to get a result like this:
ref
-----
1,1
2,2
My question is how to achieve the result mentioned above.
A better result of this stored procedure could have been:
ref
-----------------------------
1,1,ProjectLeader
2,2,Research collaborators
1,1,Project collaborators
2,2,Project collaborators
2,3,Research/Project Assistant

Answer 1

If I got it correct. you don't need to use the cursor.
ALTER PROCEDURE [dbo].[getCrigsStaffActivity]
#ProjectRef AS VARCHAR(1000),
#staffCost AS varchar(1000)
AS
BEGIN
SET NOCOUNT ON;
SELECT CONCAT(activityLine,',', cost,',', staffCost) as ref
FROM crigsStaffActivity
WHERE projectRef = #ProjectRef
AND staffCost = #staffCost
END

Answer 2

Please try this Procedure.
USE [***]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[getCrigsStaffActivity]
#ProjectRef as VARCHAR(1000),
#staffCost as varchar(1000)
AS
BEGIN
SET NOCOUNT ON;
Declare #val as varchar(2000);
set #val='';
Declare #temp as Varchar(2000);
Declare #activityLine as Varchar(2000);
Declare #cost as Varchar(2000);
DECLARE #ref as CURSOR;
SET #ref = CURSOR FOR
SELECT DISTINCT activityLine, cost
FROM crigsStaffActivity
where projectRef = #ProjectRef
and staffCost = #staffCost
OPEN #ref;
FETCH NEXT FROM #ref INTO #activityLine, #cost;
WHILE ##FETCH_STATUS = 0
BEGIN
FETCH NEXT FROM #ref INTO #activityLine, #cost;
set #val = CONCAT(#activityLine,',',#cost);
END
CLOSE #ref;
DEALLOCATE #ref;
select #val as ref;
END