This is the query I use to insert on MSSQL..
$res=mssql_query("CREATE TABLE [dbo].[form_a] (
[ref] [int] IDENTITY (1, 1) NOT NULL ,
[salesperson] [varchar] (50) NULL ,
[weekending] [varchar] (50) NULL ,
[prov_new] [varchar] (50) NULL ,
[prov_exist] [varchar] (50) NULL ,
[confirmed_new] [varchar] (50) NULL ,
[confirmed_exist] [varchar] (50) NULL ,
[conversion] [varchar] (50) NULL ,
[newcalls] [int] NULL ,
[existcalls] [int] NULL ,
[thisactivity] [text] NULL ,
[nextactivity] [text] NULL
) ON [PRIMARY]");
HTH