create table bbb as select * from aaa where 1=2;
alter table bbb modify (a1 varchar2(32));
insert into bbb select * from aaa;
drop table aaa;
rename table bbb to aaa;
最初由 suniori 发布
[B]create table bbb as select * from aaa where 1=2;
alter table bbb modify (a1 varchar2(32));
insert into bbb select * from aaa;
drop table aaa;
rename table bbb to aaa; [/B]