CREATE TABLE TravelRequest (
   trvl_Id                      integer NOT NULL DEFAULT autoincrement,
   trvl_Date                    date NULL,
   trvl_Loc                     varchar(20) NULL,
   est_Cost                     float NULL,
   purpose                      varchar(200) NULL,
   trvl_Status                  varchar(20) NULL, 
   st_Cmmnt                     varchar(200) NULL, 
   PRIMARY KEY CLUSTERED (trvl_Id) 
);