SQL: not showing the same date when given from and to date? - sql

Question

When trying to get same date in between, it is just throwing an empty table.
My table structure is as below:
CREATE TABLE [dbo].[tblNames](
[RorId] [int] IDENTITY(1,1) NOT NULL,
[Name1] [varchar](1) NOT NULL,
[Name2] [nvarchar](1) NOT NULL,
[BirthDate] [datetime] NULL,
CONSTRAINT [PK_tblames] PRIMARY KEY CLUSTERED
(
[RorId] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, OPTIMIZE_FOR_SEQUENTIAL_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
GO
and some data:
SET IDENTITY_INSERT [dbo].[tblNames] ON
GO
INSERT [dbo].[tblNames] ([RorId], [Name1], [Name2], [BirthDate]) VALUES (1, N'A', N'A', CAST(N'2022-06-13T10:52:00.000' AS DateTime))
GO
INSERT [dbo].[tblNames] ([RorId], [Name1], [Name2], [BirthDate]) VALUES (2, N'C', N'E', CAST(N'2022-06-13T11:52:00.000' AS DateTime))
GO
INSERT [dbo].[tblNames] ([RorId], [Name1], [Name2], [BirthDate]) VALUES (3, N'C', N'E', CAST(N'2022-06-13T12:52:00.000' AS DateTime))
GO
INSERT [dbo].[tblNames] ([RorId], [Name1], [Name2], [BirthDate]) VALUES (4, N'E', N'C', CAST(N'2022-06-13T08:52:00.000' AS DateTime))
GO
SET IDENTITY_INSERT [dbo].[tblNames] OFF
GO

Answer 1

Try this one:
select * from tblNames
where BirthDate >= '2022-06-13 00:00:00' and BirthDate <= '2022-06-13 23:59:59'
OR
select * from tblNames
where BirthDate between '2022-06-13 00:00:00' and '2022-06-13 23:59:59'
OR you can add milliseconds as below:
select * from tblNames
where BirthDate between '2022-06-13 00:00:00.000' and '2022-06-13 23:59:59.997'
Be careful about Time part in datetime Data Type.