sql server already exists table to create partition

USE [MyTest]
GO
BEGIN TRANSACTION
ALTER TABLE [dbo].[UserInfo] DROP CONSTRAINT [PK_UserInfo]




ALTER TABLE [dbo].[UserInfo] ADD  CONSTRAINT [PK_UserInfo] PRIMARY KEY NONCLUSTERED 
(
[Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]




SET ANSI_PADDING ON


CREATE CLUSTERED INDEX [ClusteredIndex_on_partitionSchemeArea_636587927239864114] ON [dbo].[UserInfo]
(
[Area]
)WITH (SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, ONLINE = OFF) ON [partitionSchemeArea]([Area])




DROP INDEX [ClusteredIndex_on_partitionSchemeArea_636587927239864114] ON [dbo].[UserInfo]








COMMIT TRANSACTION