第一章：日志管理

1.forcing log switches sql> alter system switch logfile;

2.forcing checkpoints sql> alter system checkpoint;

3.adding online redo log groups sql> alter database add logfile [group 4] sql> ('/disk3/log4a.rdo','/disk4/log4b.rdo') size 1m;

4.adding online redo log members sql> alter database add logfile member sql> '/disk3/log1b.rdo' to group 1, sql> '/disk4/log2b.rdo' to group 2;

5.changes the name of the online redo logfile sql> alter database rename file 'c:/oracle/oradata/oradb/redo01.log' sql> to 'c:/oracle/oradata/redo01.log';

6.drop online redo log groups sql> alter database drop logfile group 3;

7.drop online redo log members sql> alter database drop logfile member 'c:/oracle/oradata/redo01.log';

8.clearing online redo log files sql> alter database clear [unarchived] logfile 'c:/oracle/log2a.rdo';

9.using logminer analyzing redo logfiles

a. in the init.ora specify utl_file_dir = ' ' b. sql> execute dbms_logmnr_d.build('oradb.ora','c:/oracle/oradb/log'); c. sql> execute dbms_logmnr_add_logfile('c:/oracle/oradata/oradb/redo01.log', sql> dbms_logmnr.new); d. sql> execute dbms_logmnr.add_logfile('c:/oracle/oradata/oradb/redo02.log', sql> dbms_logmnr.addfile); e. sql> execute dbms_logmnr.start_logmnr(dictfilename=>'c:/oracle/oradb/log/oradb.ora'); f. sql> select * from v$logmnr_contents(v$logmnr_dictionary,v$logmnr_parameters sql> v$logmnr_logs); g. sql> execute dbms_logmnr.end_logmnr;

第二章：表空间管理 1.create tablespaces sql> create tablespace tablespace_name datafile 'c:/oracle/oradata/file1.dbf' size 100m, sql> 'c:/oracle/oradata/file2.dbf' size 100m minimum extent 550k [logging/nologging] sql> default storage (initial 500k next 500k maxextents 500 pctinccease 0) sql> [online/offline] [permanent/temporary] [extent_management_clause]

2.locally managed tablespace sql> create tablespace user_data datafile 'c:/oracle/oradata/user_data01.dbf' sql> size 500m extent management local uniform size 10m;

3.temporary tablespace sql> create temporary tablespace temp tempfile 'c:/oracle/oradata/temp01.dbf' sql> size 500m extent management local uniform size 10m;

4.change the storage setting sql> alter tablespace app_data minimum extent 2m; sql> alter tablespace app_data default storage(initial 2m next 2m maxextents 999);