17.08.03

oracle管理

体系结构

 

SGA:    大的缓冲区

$ sqlplus / as sysdba

SQL> show sga              显示sga的设置

SQL> show parameter sga_max_size    查看系统里面初始化参数

SQL> select * from V$SGAINFO;      动态性能视图,描述系统里面组件的信息

oem:浏览器中 服务器-->内存指导(https://192.168.0.1:1158/em)

shared pool:      最近执行过的SQL语句的执行计划

SQL> show parameter shared_pool_size

SQL> select component, current_size from V$SGA_DYNAMIC_COMPONENTS where component='shared pool';

SQL> select * from v$SGAINFO;

db buffer cache:

SQL> show parameter db_block_size

SQL> show parameter db_cache_size

SQL> select * from v$SGAINFO;

SQL> select component, current_size from V$SGA_DYNAMIC_COMPONENTS where component='DEFAULT buffer cache';

redo log buffer:

SQL> show parameter log_buffer

SQL> select * from v$sgainfo;

PGA:

SQL> show parameter pga_aggregate_target

SQL> select * from V$PGASTAT where NAME='total PGA allocated';

后台进程:

SQL> select name from v$bgprocess where paddr<>'00';

SQL> ! ps -ef | grep ora_

SQL> show parameter db_writer_processes

数据文件:

$ ll /u01/app/oracle/oradata/orcl/*.dbf

SQL> select name from v$datafile;

SQL> select name from v$tempfile;

控制文件:

$ find /u01 -name 'control0[12].ctl'

SQL> select name from v$controlfile;

SQL> select TYPE, RECORD_SIZE, RECORDS_TOTAL, RECORDS_USED from v$controlfile_record_section;

重做日志:

$ ll /u01/app/oracle/oradata/orcl/*.log

SQL> select group#, member from v$logfile;

参数文件:

$ ll $ORACLE_HOME/dbs/spfile*.ora

$ strings $ORACLE_HOME/dbs/spfileorcl.ora

SQL> show parameter spfile;

SQL> show parameter

密码文件:

$ ll $ORACLE_HOME/dbs/orapw*

归档日志:

SQL> select name from v$archived_log;

警告日志:

$ find /u01 -name 'alert_*.log'

posted on 2017-08-19 08:51  zhang_x  阅读(93)  评论(0编辑  收藏  举报

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