?? demo01.sql
字號:
create table t
as
select *
from all_objects
where 1=0;
select * from t;
set autotrace traceonly statistics
select * from t;
set autotrace off
insert into t select * from all_objects;
rollback;
select * from t;
set autotrace traceonly statistics
select * from t;
set autotrace off
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