seems to be a good article

but

is this query correct

CREATE TABLE [tblCpls] (

[cplNum] [int] NULL ,

[cplName] [varchar] (4000) NULL ,

[cplDesc] [varchar] (1000) NULL,

CONSTRAINT [PK_tblList] PRIMARY KEY CLUSTERED

(

[cplnum]

) ON [PRIMARY]

)

) ON [PRIMARY]

GO

how can u create a Clustered index on nullable column ??