use Patient_Data 
go

alter table tbmaster alter column CardNumber varchar(25)
GO

USE [Patient_Data]
GO
CREATE NONCLUSTERED INDEX [byCardNumber] ON [dbo].[tbmaster] 
(
	[CardNumber] ASC
)WITH (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]
GO