Oracle数据表之间的数据同步

保证两个数据表结构相同,如不相同只能同步相同字段;

只是思路,具体请根据需求修改.

declare  

      

cursor csrn_mon

is          

select *       

from table2;           

row_mon csrn_mon%rowtype;



cursor csrn_loc

is

select * 

from table1;

row_loc csrn_loc%rowtype;



cursor csrn_del

is

select xh from table1 minus select xh from table2;

row_del csrn_del%rowtype;



cursor csrn_ins

is

select xh from table2 minus select xh from table1;

row_ins csrn_ins%rowtype;



begin       

     

for row_mon in csrn_mon loop           

    for row_loc in csrn_loc loop  

        if row_loc.xh = row_mon.xh then

           dbms_output.put_line('更新信息:' || row_loc.xh);

        end if;

    end loop;

end loop;



for row_del in csrn_del loop

    dbms_output.put_line('删除信息:' || row_del.xh);

end loop;



for row_ins in csrn_ins loop

    dbms_output.put_line('插入信息:' || row_ins.xh);

end loop;



end;