Отметить каждый раз, когда участник появляется снова как распространено

Question

Я хочу пометить обращения, то есть каждый раз, когда участник появляется снова. Этот список показывает результат, который я хочу

Sequence ID Aktivity ID From, Agent ID  To, Agent ID    Movement    Circulated
1           001A9552444 YNGBAN          TOMYAN          1           0
2           001A9552461 TOMYAN          THOKIN          1           0
3           001A9552466 THOKIN          MATLOV          1           0
4           001A9552486 MATLOV          THOKIN          1           1
5           001A9552499 THOKIN          YNGBAN          1           1
6           001A9554213 YNGBAN          IKJER           1           0

Код для создания базовой таблицы

DROP TABLE IF EXISTS [dbo].[Basetable]
CREATE TABLE [dbo].[Basetable] (
[Incident ID] INT,
[Activity ID] VARCHAR(50),
[Agent ID] VARCHAR(50),
)
INSERT INTO [dbo].[Basetable]
VALUES
(1072326, '001A9552444', 'YNGBAN'),
(1072326, '001A9552461', 'TOMYAN'),
(1072326, '001A9552463', 'THOKIN'),
(1072326, '001A9552464', 'THOKIN'),
(1072326, '001A9552465', 'THOKIN'),
(1072326, '001A9552466', 'THOKIN'),
(1072326, '001A9552468', 'MATLOV'),
(1072326, '001A9552484', 'MATLOV'),
(1072326, '001A9552485', 'MATLOV'),
(1072326, '001A9552486', 'MATLOV'),
(1072326, '001A9552499', 'THOKIN'),
(1072326, '001A9554212', 'YNGBAN'),
(1072326, '001A9554213', 'YNGBAN'),
(1072326, '001A9568252', 'IKJER')

Ниже приведен код. Я не хочу делать Group By и Count и попробовал Left Join и Outer Apply, но пока не нашел хорошего решения.

WITH X AS (
SELECT
   ROW_NUMBER() OVER (ORDER BY [Activity ID]) AS [Sequence ID]
   ,[Incident ID]
   ,[Activity ID]
   ,[From, Agent ID]
   ,[To, Agent ID] 
   ,1 AS [Movement]
FROM (
   SELECT
         [Incident ID]
         ,[Activity ID]
         ,[Agent ID] AS [From, Agent ID] 
         ,LEAD([Agent ID],1,0) OVER (PARTITION BY [Incident ID] ORDER BY [Activity ID]) AS [To, Agent ID] 
   FROM [dbo].[Basetable]
   ) AS X
WHERE
   [To, Agent ID] != '0' AND [From, Agent ID] != [To, Agent ID]
)
SELECT
   X1.[Sequence ID]
   ,X1.[Incident ID]
   ,X1.[Activity ID]
   ,X1.[From, Agent ID]
   ,X1.[To, Agent ID] 
   ,X1.[Movement]
FROM X AS X1

Редактировать: добавлен код для создания базовой таблицы и очищен основной код.

Answer 1

-- Your existing query
;WITH X AS (
SELECT
   ROW_NUMBER() OVER (ORDER BY [Activity ID]) AS [Sequence ID]
   ,[Incident ID]
   ,[Activity ID]
   ,[From, Agent ID]
   ,[To, Agent ID] 
   ,1 AS [Movement]
FROM (
   SELECT
         [Incident ID]
         ,[Activity ID]
         ,[Agent ID] AS [From, Agent ID] 
         ,LEAD([Agent ID],1,0) OVER (PARTITION BY [Incident ID] ORDER BY [Activity ID]) AS [To, Agent ID] 
   FROM [dbo].[Basetable]
   ) AS X
WHERE
   [To, Agent ID] != '0' AND [From, Agent ID] != [To, Agent ID]
),
Y AS
(
SELECT
   X1.[Sequence ID]
   ,X1.[Incident ID]
   ,X1.[Activity ID]
   ,X1.[From, Agent ID]
   ,X1.[To, Agent ID] 
   ,X1.[Movement]
FROM X AS X1
)
-- Added this part
SELECT  Y.*, CASE WHEN Z.CNT > 0 THEN 1 ELSE 0 END AS Circulated
FROM    Y
    CROSS APPLY
    (
        -- Count the occurrence of the To Agent ID appear before as `From`
        SELECT  CNT = COUNT(*)
        FROM    X
        WHERE   X.[Sequence ID]     < Y.[Sequence ID]
        AND     X.[From, Agent ID]  = Y.[To, Agent ID]
    ) Z