oracle插入时，若表中不存在该信息则插入，否则更新主键外的其他信息

  --测试数据create table table1(id varchar2(100),name varchar2(1000),address varchar2(1000));insert into table1(id,name,address)values('01001','影子','河北') ;commit;--插入merge into table1 t1using (select '01002' id,'影子' name,'河北' address from dual) t2on (t1.id = t2.id)when matched then     update set t1.name = t2.name, t1.address = t2.addresswhen not matched then     insert values (t2.id, t2.name,t2.address);commit;--查询结果select * from table101001    影子    河北01002    影子2    辽宁--更新merge into table1 t1using (select '01001' id,'不是影子' name,'山西' address from dual) t2on (t1.id = t2.id)when matched then     update set t1.name = t2.name, t1.address = t2.addresswhen not matched then     insert values (t2.id, t2.name,t2.address);commit;--查询结果select * from table101001    不是影子    山西01002    影子2    辽宁--删除测试数据drop table table1;

begin    insert into Table (ID,Value,..) values(1001,'222',...);     commit;   exception     when dup_val_on_idx then       update Table set value = '222' where id = 1001;      commit;    when others then      Rollback;  end;