小编Fah*_*had的帖子

我有三张桌子.

表1.(预订)

        CREATE TABLE [dbo].[Booking](
            [Booking_Serno] [int] IDENTITY(1,1) NOT NULL,
            [Dt] [datetime] NULL,
            [start] [nvarchar](50) NULL,
            [todate] [nvarchar](50) NULL,
            [Service_Id] [int] NULL
        ) ON [PRIMARY]

INSERT [dbo].[Booking] ([Booking_Serno], [Dt], [start], [todate], [Service_Id]) VALUES (1, CAST(0x0000A6DA00000000 AS DateTime), N'9:30 AM', N'10:00 AM', 1)
        GO

表2.(服务)

CREATE TABLE [dbo].[Service](
    [Service_Serno] [int] IDENTITY(1,1) NOT NULL,
    [Service_Duration] [int] NULL
) ON [PRIMARY]
GO
SET IDENTITY_INSERT [dbo].[Service] ON
INSERT [dbo].[Service] ([Service_Serno], [Service_Duration]) VALUES (1, 30)

表3(规则)

CREATE TABLE [dbo].[Rules](
    [Rule_Serno] [int] IDENTITY(1,1) NOT NULL,
    [Start_Dt] …