1

複数の結果を返す次のクエリがあります (最大は約 10 行です)。すべての結果を単一の文字列として返すにはどうすればよいですか?

SELECT DISTINCT(e.Username)
FROM TblLeaveEmployee l
JOIN TblLeaveApprovalsBy a on l.EmployeeId = a.UserID
JOIN TblEmployee e on l.EmployeeId = e.id
where l.EmployeeId IN 
  (select UserID 
   FROM TblLeaveApprovalsBy 
   WHERE ApprovalUserID IN
     (SELECT ApprovalUserID from TblLeaveApprovalsBy where UserID = 77))

次のように使用しようとしSTUFFましたが、機能しません：

DECLARE @CodeNameString varchar(100)
SELECT 
   @CodeNameString = STUFF(
SELECT DISTINCT(e.Username)
FROM TblLeaveEmployee l
JOIN TblLeaveApprovalsBy a on l.EmployeeId = a.UserID
JOIN TblEmployee e on l.EmployeeId = e.id
where l.EmployeeId IN 
  (select UserID 
   FROM TblLeaveApprovalsBy
   WHERE ApprovalUserID IN
     (SELECT ApprovalUserID from TblLeaveApprovalsBy where UserID = 77)))
4

3 に答える 3

1 
DECLARE t CURSOR FOR  
SELECT DISTINCT(e.Username)
FROM TblLeaveEmployee l
JOIN TblLeaveApprovalsBy a on l.EmployeeId = a.UserID
JOIN TblEmployee e on l.EmployeeId = e.id
where l.EmployeeId IN 
(select UserID 
   FROM TblLeaveApprovalsBy 
   WHERE ApprovalUserID IN
     (SELECT ApprovalUserID from TblLeaveApprovalsBy where UserID = 77))

open t

declare @v varchar(255)
declare @Res varchar(max)
 set @Res = ''
 set @v = ''
FETCH NEXT FROM t into @v
while (@@FETCH_STATUS = 0) begin
    set @Res = @Res + @v + '|'
    FETCH NEXT FROM t into @v
end
print @Res

close t
deallocate t
于 2013-12-11T09:51:52.400 に答える