使用Linux文件句柄恢复Oracle数据文件

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SQL> create user zhongwc identified by zhongwcpwd default tablespace users;User created.SQL> grant dba to zhongwc;Grant succeeded.SQL> conn zhongwc@zwcEnter password: Connected.SQL> create table t_test tablespace users as select * from dba_objects;Table created.SQL> select count(*) from t_test;  COUNT(*)----------     75203