oracle10g 创建存储过程

oracle10g 创建存储过程的一个实例：

知识点：
1.游标
2.if语句的写法(注意是elsif，不要忘记写then)
3.变量的赋值 ：=

create or replace procedure p_settlement_checkData(supplier in varchar2,buyer in varchar2,startDate in varchar2,endDate in varchar2,checkperson in varchar2) as
       --定义游标
       cursor c_diff_saleData is
           --此处写入查询脚本
          
       --定义保存游标数据变量
       v_diff_data  c_diff_saleData%rowtype;

       v_cn int;
       v_isExist boolean;

begin

    -- 打开游标
    open c_diff_saleData;
         loop
           --遍历游标
           fetch c_diff_saleData into v_diff_data;
           exit when c_diff_saleData % notfound;

           v_isExist := false;
           if( v_diff_data.sorderId is null and  v_diff_data.borderId is not null) then
               select count(*) into v_cn from checkedData where borderId = v_diff_data.borderId;
               if(v_cn = 0) then
                   v_isExist := false;
               else
                   v_isExist := true;
               end if;
           elsif( v_diff_data.sorderId is not null and v_diff_data.borderId is null) then
             DBMS_OUTPUT.PUT_LINE("output");
           else
           DBMS_OUTPUT.PUT_LINE("output");
           end if;

         end loop;
    close c_diff_saleData;

end p_settlement_checkData;
/