select * from v$database;
alter database open;
desc dictionary
select * from dict;
desc v$fixed_table;
select * from v$fixed_table;
set oracle_sid=foxconn
select * from dba_objects;
set serveroutput on
execute dbms_output.put_line(’sfasd’);
############# 控制文件 ###########
select * from v$database;
select * from v$tablespace;
select * from v$logfile;
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