多項(xiàng)選擇題

oracle數(shù)據(jù)庫(kù)中,快速做一個(gè)和原表(old_table)一樣的備份表(new_table),可以使用以下哪些SQL命令?()

A.create table new_table as (select *from old_table);
B.create table new_table as select *from old_table where 1=1;
C.create table new_table as select *from old_table;
D.create table new_table as select from old_table where 1=1;

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