Code:
DECLARE @T TABLE (Id INT, Name NVARCHAR(20))
INSERT INTO @T(Id, Name) VALUES(2, N'Stefan')
INSERT INTO @T(Id, Name) VALUES(2, N'Igor')
INSERT INTO @T(Id, Name) VALUES(3, N'Milan')
INSERT INTO @T(Id, Name) VALUES(5, N'Jovan')
INSERT INTO @T(Id, Name) VALUES(2, N'Milica')
DECLARE @Id INT
SET @Id = 2
SELECT CASE WHEN Id = @Id THEN Name ELSE '' END FROM @T
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