--建表
--drop table SalesList;
create table SalesList(
    keHu                varchar2(20),--客户
    shangPin            varchar2(20),--商品名称
    salesNum            number(8)       --销售数量
);
 
--插入数据
declare
  --谈几个客户
  cursor lr_kh is 
  select regexp_substr(‘张三、李四、王五、赵六‘,‘[^、]+‘,1,level) keHu from dual
   connect by level <= 4;
  --进点货
  cursor lr_sp is 
  select regexp_substr(‘上衣、裤子、袜子、帽子‘,level) shangPin from dual
   connect by level <= 4;
begin
  --循环插入
  for v_kh in lr_kh loop
     for v_sp in lr_sp loop
        insert into SalesList
        select v_kh.keHu,v_sp.shangPin,floor(dbms_random.value(10,50)) from dual;
     end loop;
  end loop;
  commit;
end;
/