Oracle查看历史执行计划
select b.instance_number,b.snap_id,
a.begin_interval_time,
a.end_interval_time,
b.sql_id,
b.plan_hash_value,
b.parsing_schema_name,
b.executions_delta,
b.rows_processed_delta,
round(b.elapsed_time_delta / decode(b.executions_delta,0,1,b.executions_delta),0) as avg_elapsed_time,
round(b.cpu_time_delta / decode(b.executions_delta,0,1,b.executions_delta),0) as avg_cpu_time,
round(b.buffer_gets_delta / decode(b.executions_delta,0,1,b.executions_delta),0) as avg_buffer_gets,
round(b.iowait_delta/decode(b.executions_delta,0,1,b.executions_delta),0) as avg_iowait,
round(b.disk_reads_delta/decode(b.executions_delta,0,1,b.executions_delta),0) as avg_disk_reads,
round(b.ccwait_delta/decod
select dt.owner,
dt.table_name tablename,
dc.comments,
dt.num_rows,
dt.last_analyzed,
bb.tab_size_GB table_size_GB,
bb.index_size_GB index_size_GB,
decode(bb.islob, 0, null, 'LOB') islob,
dt.temporary
from dba_tables dt,
dba_tab_comments dc,
(select table_owner,
table_name,
round(sum(tab_size_GB) / power(1024, 3), 2) as tab_size_GB,
round(sum(index_size_GB) / power(1024, 3), 2) as index_size_GB,
sum(IsLob) as IsLob
from (select ss.owner table_owner,
NVL(dl.table_name, ss.segment_name) table_name,
ss.bytes tab_size_GB,
0 index_size_GB,
decode(dl.table_name, null, 0, 1) IsLob
from dba_segments ss, dba_lobs dl
where ss.owner = dl.owner(+)
and ss.segment_name = dl.segment_name(+)
and (ss.segment_type like 'TABLE%' or
ss.segment_type LIKE 'LOB%')
union all
select ind.table_owner,
ind.table_name,
0,
ss.bytes index_size_GB,
0 IsLob
from dba_segments ss, dba_indexes ind
where ind.owner = ss.owner
and ind.index_name = ss.segment_name)
group by table_owner, table_name) bb
where dt.owner not in (select username from dbmgr.sys_users)
and dt.owner not in ('GGMGR', 'APPMGR')
and dt.owner = bb.table_owner
and dt.table_name = bb.table_name
and dt.owner = dc.owner(+)
and dt.table_name = dc.table_name(+)
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