sql sever 常用的存储过程的写法或者说与Oracle中存过的异同点

1.ORACLE 

create or replace procedure proc_test (v_pat_no     in     varchar2,
                                                                   cv_1        out    sys_refcursor) as
v_patient_id varchar2(12);
v_times number;
tempsize number;
begin

select count(1) into tempsize
from zy_actpatient
where inpatient_no = v_pat_no
and substr(patient_id, 12, 1) = '0'
and nvl(visit_type, '0') <> 'XX';

if tempsize >0  then
          select patient_id, admiss_times
          into v_patient_id, v_times
           from zy_actpatient
           where inpatient_no = v_pat_no;
else
        select '',''into v_patient_id, v_times from dual;
end if;

     open cv_1 for

    select       a.* from a   ;
end;