Thank you very much. This works fine. 🙂

Hi Lutz,

Sample table and data -

CREATE TABLE [Overlapping](

[DKey] [int] IDENTITY(1,1) NOT NULL,

[StartDate] [datetime] NULL,

[EndDate] [datetime] NULL

) ON [PRIMARY]

GO

SET IDENTITY_INSERT [Overlapping] ON

INSERT [Overlapping] ([DKey], [StartDate], [EndDate]) VALUES (1, CAST(0x00009B8400B54640 AS...