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上完1Z0-053闪回2
进行1Z0-053闪回3
1Z0-052共19章(上完10章),1Z0-053共21章(上完4章)和1Z0-063多租户部分共9章(上完0章)
总共上完全部49章中的14章
- select * from dba_recyclebin;
- select * from dba_indexes i where
- i.owner='HR' and i.table_name='T05311_DROP';
-
- alter index hr."BIN$TSukhbrEna7gUKjAWgAu4Q==$0" rename to i05311_drop;
-
- purge dba_recyclebin;
-
- select file_name , d.autoextensible , bytes/1024/1024 from dba_data_files d
- where d.tablespace_name='TBSASMHIGH';
-
- select sum(bytes)/1024/1024 from dba_free_space f
- where f.tablespace_name='TBSASMHIGH';
-
- select * from dba_tablespaces;
-
- alter database datafile '+NEWDATA/orcl/datafile/tbsasmhigh.256.941145431'
- autoextend on;
-
- purge tablespace users user hr;
- ----
- select * from dict where table_name like 'V$%USAGE%';
- select * from V$FLASHBACK_DATABASE_LOG;
- select * from V$FLASHBACK_DATABASE_LOGFILE;
- select * from V$FLASHBACK_DATABASE_stat;
- select log_mode , flashback_on from v$database;
- ---
- select * from v$flash_recovery_area_usage;
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