Вы можете попробовать следующий запрос, используя for xml
, как показано ниже.
SELECT DISTINCT t.RowId,
STUFF((SELECT distinct ' - ' + t1.[Caption]
FROM
(
SELECT t.[RowId],
t2.Caption
FROM [TestTable] AS t
INNER JOIN [TestTable] AS t2 ON t2.[RowId] = t.[RowId]
)
t1
WHERE t.RowId = t1.RowId
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'') CaptionList
FROM
(
SELECT t.[RowId],
por.Caption
FROM [TestTable] AS t
INNER JOIN [TestTable] AS por ON por.RowId = t.RowId
)t;
Вот живое db <> fiddle demo.