oracle 复制表

create table table_name as select * from table_name1;  ---复制表，包括数据，不会创建索引

create table table_name as select * from table_name1 where 1=2; ---复制表，不包括数据

insert into table_name select * from table_name1; ---复制表数据

insert into table_name (column1,column2) select column1x,column2x from table_name1; ---复制部分表数据