How to display all row data in single string

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HOW TO DISPLAY ALL ROW DATA IN SINGLE STRING :


SELECT Stuff(
  (SELECT N', ' + Name FROM [TableName]  FOR XML PATH(''),TYPE)
  .value('text()[1]','nvarchar(max)'),1,2,N'')


Output :
ACBCK12..1212sid...

EX:
SELECT Stuff(
  (SELECT N', ' + Name FROM Test FOR XML PATH(''),TYPE)
  .value('text()[1]','nvarchar(max)'),1,2,N'')

output :

Nihar, Rohan, Rohan, , Sw, Sw

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