游标的用法

USE  pubs
DECLARE  tnames_cursor  CURSOR
FOR
    SELECT  state 
    FROM  authors
open  tnames_cursor
declare   @state   varchar ( 50 )
Fetch  tnames_cursor  into   @state

while  ( @@fetch_status = 0 )
begin
     if ( @state = ' CA ' )
     begin
         print   ' sd '     
     end
FETCH   NEXT   FROM  tnames_cursor  INTO   @state
end
CLOSE  tnames_cursor
DEALLOCATE  tnames_cursor