查看数据库发现SYSAUX表空间数据文件很大,查询发现WRH$开头的表占用空间很多以WRH$_开头的段,这些类型的段基本上都是与AWR相关的
简要清理方式:
- truncate table WRH$_SQL_BIND_METADATA; —-保存AWR收集SQL绑定信息表
- truncate table WRH$_ACTIVE_SESSION_HISTORY; ——保存AWR收集历史会话信息表
- select segment_name,partition_name,bytes/1024/1024/1024 gb from dba_segments where segment_name in('WRH$_LATCH','WRH$_SQLSTAT');
- alter table WRH$_LATCH truncate partition WRH$_LATCH_1013373590_0;
- alter table WRH$_SQLSTAT truncate partition WRH$_SQLSTA_1013373590_0;
- truncate table WRI$_ADV_SQLT_PLANS; —保存AWR收集SQL建议计划信息表
- alter table WRH$_SYSSTAT shrink space;
- alter index WRH$_SYSSTAT_PK shrink space;
- alter table WRH$_LATCH shrink space;
- alter table WRH$_SEG_STAT shrink space;
- alter table WRH$_SQLSTAT shrink space;
- alter table WRH$_PARAMETER shrink space; —-保存AWR收集参数信息表
- alter index WRH$_PARAMETER_PK shrink space;
- truncate table WRH$_EVENT_HISTOGRAM;
- truncate table WRH$_SQL_PLAN; —-保存AWR收集的SQL执行计划表
- truncate table WRH$_SQLTEXT; –—保存AWR收集的SQL文本表