How to alter column in Micorsoft SQL

Hi,
I have the following sample code to alter two table columns. But it
did not work. Please help me out. Thanks!
drop table one ;
create table one (
a float NOT NULL,
b varchar (50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL
)
alter table one
alter column a (NULL) ,
alter column b (NULL)
;
Thanks,
MikeOn Feb 1, 2:09 am, "Michael" <michae...@.gmail.com> wrote:
> Hi,
> I have the following sample code to alter two table columns. But it
> did not work. Please help me out. Thanks!
> drop table one ;
> create table one (
> a float NOT NULL,
> b varchar (50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL
> )
> alter table one
> alter column a (NULL) ,
> alter column b (NULL)
> ;
> Thanks,
> Mike
Hi Mike,
Perhaps you are not using Books Online properly.
The following code does what u wann.
ALTER TABLE ONE
ALTER COLUMN A FLOAT NULL
ALTER TABLE ONE
ALTER COLUMN B VARCHAR NULL
Thanks
Dutt...