answer1:
alter table old_table_name rename to new_table_name;(大写为系统命令)
answer2:
sql> select tname from tab ;
tname
——————————
test
sql> rename test to temp ;
table renamed.
sql> select tname from tab ;
tname
——————————
temp
rename只能修改自己schema下面的表。
answer3:
create new_table as select * from old_table;drop table old_table;
answer4:
直接在plsql developer里面改