Use [EnVisage]

IF (NOT EXISTS (SELECT * FROM sys.tables where name='NonProjectTime2Resource'))
begin
	CREATE TABLE [dbo].[NonProjectTime2Resource](
		[Id] [uniqueidentifier] NOT NULL,
		[NonProjectTimeId] [uniqueidentifier] NOT NULL,
		[PeopleResourceId] [uniqueidentifier] NOT NULL,
		[Position] [int] NOT NULL,
	 CONSTRAINT [PK_NonProjectTime2Resource] PRIMARY KEY CLUSTERED 
	(
		[Id] ASC
	)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
	) ON [PRIMARY]

	ALTER TABLE [dbo].[NonProjectTime2Resource] ADD  CONSTRAINT [DF_NonProjectTime2Resource_Id]  DEFAULT (newid()) FOR [Id]

	ALTER TABLE [dbo].[NonProjectTime2Resource] ADD  CONSTRAINT [DF_NonProjectTime2Resource_Ordinal]  DEFAULT ((0)) FOR [Position]

	ALTER TABLE [dbo].[NonProjectTime2Resource]  WITH CHECK ADD  CONSTRAINT [FK_NonProjectTime2Resource_NonProjectTime2Resource] FOREIGN KEY([NonProjectTimeId])
	REFERENCES [dbo].[NonProjectTime] ([Id])

	ALTER TABLE [dbo].[NonProjectTime2Resource] CHECK CONSTRAINT [FK_NonProjectTime2Resource_NonProjectTime2Resource]

	ALTER TABLE [dbo].[NonProjectTime2Resource]  WITH CHECK ADD  CONSTRAINT [FK_NonProjectTime2Resource_PeopleResource] FOREIGN KEY([PeopleResourceId])
	REFERENCES [dbo].[PeopleResource] ([Id])

	ALTER TABLE [dbo].[NonProjectTime2Resource] CHECK CONSTRAINT [FK_NonProjectTime2Resource_PeopleResource]

	CREATE UNIQUE NONCLUSTERED INDEX [IX_NonProjectTime2Resource] ON [dbo].[NonProjectTime2Resource]
	(
		[NonProjectTimeId] ASC,
		[PeopleResourceId] ASC
	) WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
end
GO

-- Fill table NonProjectTime2Resource with data
WITH NewItemsQry (NonProjectTimeId, PeopleResourceId, LastName, FirstName)
AS
(
SELECT DISTINCT A.NonProjectTimeId, A.PeopleResourceId, C.LastName, C.FirstName
  FROM NonProjectTimeResourceAllocation A
  INNER JOIN NonProjectTime B ON (B.Id = A.NonProjectTimeId)
  INNER JOIN PeopleResource C ON (C.Id = A.PeopleResourceId)
  WHERE NOT EXISTS(
	SELECT D.* FROM NonProjectTime2Resource D
	WHERE (D.NonProjectTimeId = A.NonProjectTimeId) AND (D.PeopleResourceId = A.PeopleResourceId)
  )
)

INSERT INTO NonProjectTime2Resource (Id, NonProjectTimeId, PeopleResourceId, Position) 
SELECT NEWID() AS Id, K.NonProjectTimeId, K.PeopleResourceId,  
	ROW_NUMBER() OVER (PARTITION BY K.NonProjectTimeId ORDER BY K.NonProjectTimeId, K.LastName, K.FirstName) AS Position
FROM NewItemsQry K
GO