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;