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dbcheck.sql
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dbcheck.sql
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def author="huangqw"
def script_version="0.2"
def email="john-wong@outlook.com"
def tel='18059869210'
set term on;
set heading on;
set verify off;
set feedback off;
set linesize 2000;
set pagesize 30000;
set long 999999999;
set longchunksize 999999;
set serveroutput on;
set SQLBLANKLINES off;
exec dbms_output.enabled()
clear break compute;
ttitle off;
btitle off;
-- 生成报告名
column inst_num heading "Inst Num" new_value inst_num;
column inst_name heading "Instance" new_value inst_name format a12;
column db_name heading "DB Name" new_value db_name format a12;
column dbid heading "DB Id" new_value dbid;
column check_date heading "Check Date" new_value check_date format a12;
select d.dbid dbid
, d.name db_name
, i.instance_number inst_num
, i.instance_name inst_name
from v$database d,
v$instance i;
select to_char(sysdate, 'yymmddhh24mi') check_date
from dual;
column fname new_value fname;
select 'dbcheck_&&db_name'||'_'||'&&check_date'||'_'||trim('&&inst_num') as fname from dual;
-- set markup html on spool on pre off entmap off -
-- HEAD " -
-- <TITLE>Health Check for DB:&&db_name Inst:&&inst_name</TITLE> -
-- <meta author=&&author version=&&script_version email=&&email tel=&&tel/> -
-- <STYLE type='text/css'> -
-- body {font:bold 10pt Arial,Helvetica,Geneva,sans-serif;color:black; background:White;border-style:none;} -
-- h1 {font:bold 20pt Arial,Helvetica,Geneva,sans-serif;color:#336699;background-color:White;border-bottom:1px solid #cccc99;margin-top:0pt; margin-bottom:0pt;padding:0px 0px 0px 0px;} -
-- h2 {font:bold 18pt Arial,Helvetica,Geneva,sans-serif;color:#336699;background-color:White;margin-top:4pt; margin-bottom:0pt;} -
-- h3 {font:bold 16pt Arial,Helvetica,Geneva,sans-serif;color:#336699;background-color:White;margin-top:4pt; margin-bottom:0pt;} -
-- li {font: 8pt Arial,Helvetica,Geneva,sans-serif; color:black; background:White;} -
-- a {font:bold 8pt Arial,Helvetica,sans-serif;color:#663300; vertical-align:top;margin-top:0pt; margin-bottom:0pt;}
-- th {font:bold 8pt Arial,Helvetica,Geneva,sans-serif; color:white;background:#0066CC;padding-left:4px; padding-right:4px;padding-bottom:2px;border-style:none;} -
-- table { margin-left:0;border-collapse:separate;width:600;font:8pt Arial,Helvetica,sans-serif; border:0px;color:black; background:white;} -
-- tr { border-collapse:separate;font:8pt Arial,Helvetica,sans-serif; border:0px;color:black; background:white;} -
-- td { border-collapse:separate;font:8pt Arial,Helvetica,sans-serif; border:0px;color:black; background:#FFFFCC;} -
-- </STYLE> -
-- "
spool &&fname..html
set markup html off;
prompt <html>
prompt <head>
prompt <TITLE>Health Check for DB:&&db_name Inst:&&inst_name</TITLE>
prompt <meta author=&&author version=&&script_version email=&&email tel=&&tel/>
prompt <STYLE type='text/css'>
prompt body {font:bold 10pt Arial,Helvetica,Geneva,sans-serif;color:black; background:White;border-style:none;}
prompt h1 {font:bold 20pt Arial,Helvetica,Geneva,sans-serif;color:#336699;background-color:White;border-bottom:1px solid #cccc99;margin-top:0pt; margin-bottom:0pt;padding:0px 0px 0px 0px;}
prompt h2 {font:bold 18pt Arial,Helvetica,Geneva,sans-serif;color:#336699;background-color:White;margin-top:4pt; margin-bottom:0pt;}
prompt h3 {font:bold 16pt Arial,Helvetica,Geneva,sans-serif;color:#336699;background-color:White;margin-top:4pt; margin-bottom:0pt;}
prompt li {font: 8pt Arial,Helvetica,Geneva,sans-serif; color:black; background:White;}
prompt a {font:bold 8pt Arial,Helvetica,sans-serif;color:#663300; vertical-align:top;margin-top:0pt; margin-bottom:0pt;}
prompt th {font:bold 8pt Arial,Helvetica,Geneva,sans-serif; color:white;background:#0066CC;padding-left:4px; padding-right:4px;padding-bottom:2px;border-style:none;}
prompt table { margin-left:0;border-collapse:separate;width:600;font:8pt Arial,Helvetica,sans-serif; border:0px;color:black; background:white;}
prompt tr { border-collapse:separate;font:8pt Arial,Helvetica,sans-serif; border:0px;color:black; background:white;}
prompt td { border-collapse:separate;font:8pt Arial,Helvetica,sans-serif; border:0px;color:black; background:#FFFFCC;}
prompt p.desc {font: 8pt Arial,Helvetica,Geneva,sans-serif; color:Crimson; background:White;font-style:italic;}
prompt div.contents {position:fixed; right:10; top:30}
prompt </STYLE>
prompt </head>
prompt <body>
prompt <h1 id='header'>Health Check for DB:&&db_name Inst:&&inst_name</h1>
--print table of contents
prompt <div class="contents">
prompt <p>Table of Contents</p>
prompt <ul>
prompt <li>
prompt <a href="#dbinfo">General Info</a>
prompt </li>
prompt <li>
prompt <a href="#dbspace">Space Info</a>
prompt </li>
prompt <li>
prompt <a href="#logfileinfo">Log Info</a>
prompt </li>
prompt <li>
prompt <a href="#dbschema">Schema Info</a>
prompt </li>
prompt <li>
prompt <a href="#performance">Performance Info</a>
prompt </li>
prompt </ul>
prompt </div>
prompt <h3 id='dbinfo'>General Info</h3>
prompt <br>
set markup html on spool on pre off entmap off;
/* 数据库基本信息 */
--database info
prompt <p>Database Info
col name for a9;
col db_unique_name heading "UNAME" for a10;
col database_role heading "DBROLE" for a10;
col platform_name heading "PLATFORM" for a10;
col version_time heading "PATCH_TIME"
select d.name,
d.db_unique_name,
d.database_role,
d.created,
d.log_mode,
d.open_mode,
d.version_time patch_time,
d.force_logging
from v$database d
;
-- instance info
prompt <p>Instance Info
col instance_number heading "INST_NUM" for 99999999;
col value heading "RAC" for a3;
col startup_time heading "STARTUP" for a12;
col database_status heading "STATUS";
select i.host_name,
i.instance_number,
i.instance_name,
i.version,
i.startup_time,
i.status,
i.archiver,
i.database_status,
decode(p.value, 'FALSE','No','Yes') "VALUE"
from v$parameter p,
v$instance i
where p.name = 'cluster_database'
;
--host info
prompt <p>Host OS Info
col "MEMRORY(GB)" for 9999.99
select
(select HOST_NAME from v$instance ) "HOST_NAME",
(select PLATFORM_NAME from v$database) "PLATFORM",
(select value from v$osstat where stat_name='NUM_CPUS') "CPUS",
(select value from v$osstat where stat_name='NUM_CPU_CORES') "CORES",
(select value from v$osstat where stat_name='NUM_CPU_SOCKETS') "SOCKETS",
(select value from v$osstat where stat_name='PHYSICAL_MEMORY_BYTES')/1024/1024/1024 "MEMRORY(GB)"
from dual
;
--database key configuration
prompt <p>Key Parameters
col name for a20;
col value for a10;
col display_value heading "VALUE" for a10;
select p.name,
p.display_value,
p.isdefault,
p.ismodified,
p.isadjusted,
p.isbasic
from v$parameter p
where p.name in (
'cpu_count',
'db_cache_size',
'db_block_size',
'memory_target',
'pga_aggregate_target',
'sga_max_size',
'sga_target',
'shared_pool_size',
'processes',
'sessions')
order by p.name
;
/* 数据库资源信息 */
--database resource (process & session)
prompt <p>Current Session Info
col status heading "CURRENT SESSION STATUS" for a25;
col count for 999999;
col MAX_VALUE heading "MAX VALUE" for 999999;
select distinct v.STATUS,
count(v.STATUS) over (partition by v.status) "COUNT",
(select display_value from v$parameter where name = 'sessions') "MAX_VALUE"
from v$session v
where v.username is not null
order by v.STATUS
;
--如果会话数大于参数值的60%
set markup html off;
declare
scount number;
smax number;
begin
select count(v.status)
into scount
from v$session v
where v.username is not null;
select p.value
into smax
from v$parameter p
where p.name = 'sessions';
if scount/smax < 0.6 then
dbms_output.put_line('<p class="desc">Current session usage is less than 60%');
else
dbms_output.put_line('<p class="desc">Current session usage is greater than 60%');
end if;
end;
/
set markup html on;
/* 数据库空间信息 */
prompt <h3 id='dbspace'>Space Info</h3>
--tablespace
prompt <p>Tablespace Info
clear column;
column tablespace_name heading "NAME";
column "SIZE(G)" for 999999.999;
column "USED(G)" for 999999.999;
column "MAX(G)" for 999999.999;
with e as (SELECT a.tablespace_name,
ROUND(a.bytes_alloc / 1024 / 1024) "SIZE",
ROUND(NVL(b.bytes_free, 0) / 1024 / 1024) "FREE",
ROUND((a.bytes_alloc - NVL(b.bytes_free, 0)) / 1024 / 1024)
"USED",
ROUND((NVL(b.bytes_free, 0) / a.bytes_alloc) * 100)
"FREE%",
100 - ROUND((NVL(b.bytes_free, 0) / a.bytes_alloc) * 100)
"USED%",
ROUND(maxbytes / 1048576) "MAX"
FROM (SELECT f.tablespace_name,
SUM(f.bytes) bytes_alloc,
SUM(
DECODE(f.autoextensible,
'YES', f.maxbytes,
'NO', f.bytes))
maxbytes
FROM dba_data_files f
GROUP BY tablespace_name) a,
(SELECT f.tablespace_name, SUM(f.bytes) bytes_free
FROM dba_free_space f
GROUP BY tablespace_name) b
WHERE a.tablespace_name = b.tablespace_name(+)
UNION ALL
SELECT h.tablespace_name,
ROUND(SUM(h.bytes_free + h.bytes_used) / 1048576) "SIZE",
ROUND(
SUM((h.bytes_free + h.bytes_used) - NVL(p.bytes_used, 0))
/ 1048576)
"FREE",
ROUND(SUM(NVL(p.bytes_used, 0)) / 1048576) "USED",
ROUND(
(SUM((h.bytes_free + h.bytes_used) - NVL(p.bytes_used, 0))
/ SUM(h.bytes_used + h.bytes_free))
* 100)
"FREE%",
100
- ROUND(
(SUM((h.bytes_free + h.bytes_used) - NVL(p.bytes_used, 0))
/ SUM(h.bytes_used + h.bytes_free))
* 100)
"USED%",
ROUND(
SUM(
DECODE(f.autoextensible, 'YES', f.maxbytes, 'NO', f.bytes)
/ 1048576))
"MAX"
FROM sys.v_$temp_space_header h,
sys.v_$temp_extent_pool p,
dba_temp_files f
WHERE p.file_id(+) = h.file_id
AND p.tablespace_name(+) = h.tablespace_name
AND f.file_id = h.file_id
AND f.tablespace_name = h.tablespace_name
GROUP BY h.tablespace_name)
select t.tablespace_name,
e."SIZE"/1024 "SIZE(G)",
e.USED/1024 "USED(G)",
e."USED%",
-- e.FREE "FREE(M)",
-- e."FREE%",
e.MAX/1024 "MAX(G)",
-- t.block_size "BLOCK_SIZE(K)",
t.status,
t.contents,
t.logging,
t.force_logging
-- t.bigfile
from dba_tablespaces t
left outer join e
on e.tablespace_name = t.tablespace_name
order by tablespace_name
;
clear column;
begin
dbms_output.put_line('<p class="desc">Focus on tablespace which usage is greater 80%');
end;
/
--datafile
prompt <p>Data File
SELECT d.tablespace_name,
d.file_name,
ROUND(d.bytes/1024/1024/1024) AS "SIZE(G)",
ROUND(d.maxbytes/1024/1024/1024) AS "MAX(G)",
d.autoextensible,
d.status
FROM dba_data_files d
union
select t.tablespace_name,
t.FILE_NAME,
ROUND(t.bytes/1024/1024/1024) AS "SIZE(G)",
ROUND(t.maxbytes/1024/1024/1024) AS "MAX(G)",
t.autoextensible,
t.status
from DBA_TEMP_FILES t
order by tablespace_name
;
begin
dbms_output.put_line('<p class="desc">Focus on data file which is not autoextend');
end;
/
--asmdisk
-- declare
-- isasm number;
-- begin
-- select count(*)
-- into isasm
-- from v$asm_disk;
-- if isasm > 0 then
-- dbms_output.put_line('<p>ASM磁盘信息');
-- end if;
-- end;
prompt <p>ASM Disks Info
break on GROUP_NAME skip 1;
compute sum label "Total -->" of "TOTAL(G)" on GROUP_NAME;
compute sum label "Total -->" of "FREE(G)" on GROUP_NAME;
column GROUP_NAME for a15;
column "TOTAL(G)" for 999999.999;
column "FREE(G)" for 999999.999;
select g.NAME "GROUP_NAME",
d.DISK_NUMBER,
d.NAME,
d.CREATE_DATE,
d.MOUNT_DATE,
d.STATE,
d.TOTAL_MB/1024 "TOTAL(G)",
d.FREE_MB/1024 "FREE(G)"
from V$ASM_DISK d, V$ASM_DISKGROUP g
where d.GROUP_NUMBER = g.GROUP_NUMBER
order by d.GROUP_NUMBER
;
clear column compute;
--fast recovery area使用情况
prompt <p>Flash Recovery Area Info
select substr(name, 1, 30) "NAME",
space_limit "QUOTA",
space_used "USED",
space_reclaimable "RECLAIMABLE",
number_of_files "FILES"
from v$recovery_file_dest
;
select * from V$FLASH_RECOVERY_AREA_USAGE
;
prompt <h3 id='logfileinfo'>日志信息</h3>
--近期日志切换情况
prompt <p>Lately Redo Log Switch Info
SELECT SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH:MI:SS'),1,5) "DAY",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'00',1,0)) "00",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'01',1,0)) "01",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'02',1,0)) "02",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'03',1,0)) "03",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'04',1,0)) "04",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'05',1,0)) "05",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'06',1,0)) "06",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'07',1,0)) "07",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'08',1,0)) "08",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'09',1,0)) "09",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'10',1,0)) "10",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'11',1,0)) "11",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'12',1,0)) "12",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'13',1,0)) "13",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'14',1,0)) "14",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'15',1,0)) "15",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'16',1,0)) "16",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'17',1,0)) "17",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'18',1,0)) "18",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'19',1,0)) "19",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'20',1,0)) "20",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'21',1,0)) "21",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'22',1,0)) "22",
SUM(DECODE(SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH24:MI:SS'),10,2),'23',1,0)) "23",
COUNT(*) "TOTAL"
FROM v$log_history a
where first_time>=to_char(sysdate-11)
GROUP BY SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH:MI:SS'),1,5)
ORDER BY SUBSTR(TO_CHAR(first_time, 'MM/DD/RR HH:MI:SS'),1,5) DESC
;
--日志组大小
prompt <p>Redo Log Info
column "SIZE(M)" for 999999.999;
column THREAD# for 999999;
select l.THREAD#,
l.group#,
l.bytes/1024/1024 "SIZE(M)",
l.members,
l.archived,
l.status
from v$log l
order by l.THREAD#, l.GROUP#
;
select l.GROUP#,
l.TYPE,
l.MEMBER
from v$logfile l
order by l.TYPE,l.GROUP#
;
--Redo Log 切换时间
prompt <p>Redo Log Switch Info
with rec as (
select lh.THREAD#,
lh.SEQUENCE#,
lh.FIRST_TIME,
lh.next_time,
round((lh.next_time - lh.FIRST_TIME) * 24 * 60 * 60, 2) diff
from (select l.THREAD#,
l.SEQUENCE#,
l.FIRST_TIME,
lag(l.FIRST_TIME, 1) over ( partition by l.THREAD# order by l.SEQUENCE# desc) next_time
from V$LOG_HISTORY l
where l.FIRST_TIME > sysdate - 10) lh
where lh.next_time is not null
)
select r.THREAD#,
min(r.diff) "MIN(S)",
max(r.diff) "MAX(S)",
round(avg(r.diff),1) "AVG(S)"
from rec r
group by r.THREAD#
;
begin
dbms_output.put_line('<p class="desc">The greater average switch time, the more busy database is');
end;
/
--每日归档量
prompt <p>Archived Log Size Per Day
select to_char(trunc(a.FIRST_TIME), 'yyyy-mm-dd') "DAY",
round(sum(a.BLOCK_SIZE * a.BLOCKS) / 1024 / 1024 / 1024, 3) "SIZE(G)"
from V$ARCHIVED_LOG a
group by to_char(trunc(a.FIRST_TIME), 'yyyy-mm-dd')
order by to_char(trunc(a.FIRST_TIME), 'yyyy-mm-dd') desc
;
/* 对象信息 */
prompt <h3 id='dbschema'>数据库对象信息</h3>
--表有带并行度
prompt <p>Tables with Parallel Degree
select t.owner,
t.table_name,
degree
from dba_tables t
where trim(t.degree) <>'1'
and trim(t.degree)<>'0'
and owner not in ('SYSTEM','SYSMAN','SYS','CTXSYS','MDSYS','OLAPSYS','WMSYS','EXFSYS','LBACSYS','WKSYS','XDB','ORDSYS','DBSNMP','OUTLN','TSMSYS')
and owner not like 'FLOWS%'
and owner not like 'WK%'
;
--索引有带并行度
prompt <p>Indexes with Parallel Degree
select t.owner,
t.table_name,
index_name,
degree,
status
from dba_indexes t
where trim(t.degree) <>'1'
and trim(t.degree)<>'0'
and owner not in ('SYSTEM','SYSMAN','SYS','CTXSYS','MDSYS','OLAPSYS','WMSYS','EXFSYS','LBACSYS','WKSYS','XDB','ORDSYS','DBSNMP','OUTLN','TSMSYS')
and owner not like 'FLOWS%'
and owner not like 'WK%'
;
--失效索引
prompt <p>Invalid Indexes
select t.index_name,
t.table_name,
t.blevel,
t.num_rows,
t.leaf_blocks,
t.distinct_keys
from dba_indexes t
where status = 'UNUSABLE'
and table_owner not in ('SYSTEM','SYSMAN','SYS','CTXSYS','MDSYS','OLAPSYS','WMSYS','EXFSYS','LBACSYS','WKSYS','XDB')
and table_owner not like 'FLOWS%'
;
select t2.owner,
t1.blevel,
t1.leaf_blocks,
t1.INDEX_NAME,
t2.table_name,
t1.PARTITION_NAME,
t1.STATUS
from dba_ind_partitions t1, dba_indexes t2
where t1.index_name = t2.index_name
and t1.STATUS = 'UNUSABLE'
;
--失效对象
prompt <p>Invalid Objects
select t.owner,
t.object_type,
t.object_name
from dba_objects t
where STATUS='INVALID'
order by 1, 2
;
--位图索引和函数索引、反向键索引
prompt <p>Bitmap Index|Function-based Index|Reverse Index
select t.owner,
t.table_name,
t.index_name,
t.index_type,
t.status,
t.blevel,
t.leaf_blocks
from dba_indexes t
where index_type in ('BITMAP', 'FUNCTION-BASED NORMAL', 'NORMAL/REV')
and owner not in ('SYSTEM','SYSMAN','SYS','CTXSYS','MDSYS','OLAPSYS','WMSYS','EXFSYS','LBACSYS','WKSYS','XDB','ORDSYS','DBSNMP','OUTLN','TSMSYS')
and owner not like 'FLOWS%'
and owner not like 'WK%'
;
--组合索引组合列超过4个的
prompt <p>Composite Index with 4 or More Columns
select table_owner,
table_name,
index_name,
count(*)
from dba_ind_columns
where table_owner not in ('SYSTEM','SYSMAN','SYS','CTXSYS','MDSYS','OLAPSYS','WMSYS','EXFSYS','LBACSYS','WKSYS','XDB','ORDSYS','DBSNMP','OUTLN','TSMSYS')
and table_owner not like 'FLOWS%'
and table_owner not like 'WK%'
group by table_owner,table_name, index_name
having count(*) >= 4
order by count(*) desc
;
--索引个数字超过5个的表
prompt <p>Tables with 5 or More Index
select owner,
table_name,
count(*) "COUNT"
from dba_indexes
where owner not in ('SYSTEM','SYSMAN','SYS','CTXSYS','MDSYS','OLAPSYS','WMSYS','EXFSYS','LBACSYS','WKSYS','XDB','ORDSYS','DBSNMP','OUTLN','TSMSYS')
and owner not like 'FLOWS%'
and owner not like 'WK%'
group by owner,table_name
having count(*) >= 5
order by "COUNT" desc
;
--哪些大表从未建过索引
prompt <p>Big Table with no Index
select segment_name,
bytes / 1024 / 1024 / 1024 "SIZE(G)",
blocks,
tablespace_name
from dba_segments
where segment_type = 'TABLE'
and segment_name not in (select table_name from dba_indexes)
and bytes / 1024 / 1024 / 1024 >= 0.5
order by "SIZE(G)" desc
;
select segment_name,
sum(bytes) / 1024 / 1024 / 1024 "SIZE(G)",
sum(blocks) "BLOCKS"
from dba_segments
where segment_type = 'TABLE PARTITION'
and segment_name not in (select table_name from dba_indexes)
group by segment_name
having sum(bytes) / 1024 / 1024 / 1024 >= 0.5
order by "SIZE(G)" desc
;
--哪些表的组合索引与单列索引存在交叉的情况
prompt <p>Composite Index Cross with Single Column Index
select table_name,
trunc(count(distinct(column_name)) / count(*),2) "CROSS_IDX_RATE"
from dba_ind_columns
where table_owner not in ('SYSTEM','SYSMAN','SYS','CTXSYS','MDSYS','OLAPSYS','WMSYS','EXFSYS','LBACSYS','WKSYS','XDB','ORDSYS','DBSNMP','OUTLN','TSMSYS')
and table_owner not like 'FLOWS%'
and table_owner not like 'WK%'
group by table_name
having count(distinct(column_name)) / count(*) < 1
order by cross_idx_rate desc
;
--哪些对象建在系统表空间上
prompt <p>Objects in SYSTEM|SYSAUX Tablespace
select * from (
select owner, segment_name, tablespace_name, count(*) num
from dba_segments
where tablespace_name in('SYSTEM','SYSAUX')
group by owner, segment_name, tablespace_name)
where owner not in ('SYSTEM','SYSMAN','SYS','CTXSYS','MDSYS','OLAPSYS','WMSYS','EXFSYS','LBACSYS','WKSYS','XDB','ORDSYS','DBSNMP','OUTLN','TSMSYS')
and owner not like 'FLOWS%'
and owner not like 'WK%'
;
--TOP 10 对象大小
prompt <p>Top 10 Size Objects
column object_size heading "SIZE(G)" for 999999.999;
select *
from (select owner,
segment_name,
segment_type,
round(sum(bytes) / 1024 / 1024 / 1024) object_size
from DBA_segments
group by owner, segment_name, segment_type
order by object_size desc)
where rownum <= 10
;
--回收站情况(大小及数量）
prompt <p>Recyclebin Info
column recyb_size heading "SIZE(G)" for 999999.999;
column recyb_cnt heading "COUNT";
select *
from (select SUM(BYTES) / 1024 / 1024 / 1024 as recyb_size
from DBA_SEGMENTS
WHERE SEGMENT_NAME LIKE 'BIN$%') a,
(select count(*) as recyb_cnt from dba_recyclebin)
;
--查谁占用了undo表空间
prompt <p>UNDO Tablespace Usage
SELECT r.name "roll_segment_name", rssize/1024/1024/1024 "RSSIZE(G)",
s.sid,
s.serial#,
s.username,
s.status,
s.sql_hash_value,
s.SQL_ADDRESS,
s.MACHINE,
s.MODULE,
substr(s.program, 1, 78) "PROGRAM",
r.usn,
hwmsize/1024/1024/1024, shrinks ,xacts
FROM sys.v_$session s,sys.v_$transaction t,sys.v_$rollname r, v$rollstat rs
WHERE t.addr = s.taddr and t.xidusn = r.usn and r.usn=rs.USN
Order by rssize desc
;
--查谁占用了temp表空间
prompt <p>TEMP Tablespace Usage
select sql.sql_id,
t.Blocks * 16 / 1024 / 1024 "BLOCKS",
s.USERNAME,
s.SCHEMANAME,
t.tablespace,
t.segtype,
t.extents,
s.PROGRAM,
s.OSUSER,
s.TERMINAL,
s.sid,
s.SERIAL#
from v$sort_usage t, v$session s , v$sql sql
where t.SESSION_ADDR = s.SADDR
and t.SQLADDR=sql.ADDRESS
and t.SQLHASH=sql.HASH_VALUE
;
COLUMN temp_used FORMAT 9999999999
SELECT NVL(s.username, '(background)') AS username,
s.sid,
s.serial#,
ROUND(ss.value/1024/1024, 2) AS temp_used_mb
FROM v$session s
JOIN v$sesstat ss ON s.sid = ss.sid
JOIN v$statname sn ON ss.statistic# = sn.statistic#
WHERE sn.name = 'temp space allocated (bytes)'
AND ss.value > 0
ORDER BY 1
;
--表大小超过10GB未建分区的
prompt <p>Big Table with no Partition
column object_size heading "SIZE(G)";
select owner,
segment_name,
segment_type,
round(sum(bytes) / 1024 / 1024 / 1024,2) object_size
from dba_segments
where segment_type = 'TABLE'
and bytes > 10*1024*1024*1024
group by owner, segment_name, segment_type
order by object_size desc
;
--分区最多的前10个对象
prompt <p>Most Partitions Objects
select *
from (select table_owner, table_name, count(*) cnt
from dba_tab_partitions
group by table_owner, table_name
order by cnt desc)
where rownum <= 10
;
--分区不均匀的表
prompt <p>Uneven Partition Tables
select *
from (select table_owner,
table_name,
max(num_rows) max_num_rows,
trunc(avg(num_rows), 0) avg_num_rows,
sum(num_rows) sum_num_rows,
case
when sum(num_rows) = 0 then
0
else
trunc(max(num_rows) / trunc(avg(num_rows), 0), 2)
end rate,
count(*) part_count
from dba_tab_partitions
group by table_owner, table_name)
where rate > 5
;
--列数量超过100个或小于2的表
prompt <p>Table with Less 2 and Greater 100 Columns
select *
from (select owner, table_name, count(*) col_count
from dba_tab_cols
group by owner, table_name)
where col_count > 100
or col_count <= 2
and owner not in ('SYSTEM','SYSMAN','SYS','CTXSYS','MDSYS','OLAPSYS','WMSYS','EXFSYS','LBACSYS','WKSYS','XDB')
and owner not like 'FLOWS%'
;
--表属性是nologging的
prompt <p>Table with nologging
select owner, table_name, tablespace_name, logging
from dba_tables
where logging = 'NO'
and owner not in ('SYSTEM','SYSMAN','SYS','CTXSYS','MDSYS','OLAPSYS','WMSYS','EXFSYS','LBACSYS','WKSYS','XDB')
and owner not like 'FLOWS%'
;
--表属性含COMPRESSION的
prompt <p>Table with COMPRESSION
select owner, table_name, tablespace_name, COMPRESSION
from dba_tables
where COMPRESSION = 'ENABLED'
and owner not in ('SYSTEM','SYSMAN','SYS','CTXSYS','MDSYS','OLAPSYS','WMSYS','EXFSYS','LBACSYS','WKSYS','XDB')
and owner not like 'FLOWS%'
;
--索引属性含COMPRESSION的
prompt <p>Index with COMPRESSION
select owner, index_name, table_name, COMPRESSION
from dba_indexes
where COMPRESSION = 'ENABLED'
and owner not in ('SYSTEM','SYSMAN','SYS','CTXSYS','MDSYS','OLAPSYS','WMSYS','EXFSYS','LBACSYS','WKSYS','XDB')
and owner not like 'FLOWS%'
;
--将外键未建索引的情况列出
prompt <p>Foreign Key with no Index
select *
from (select pk.owner PK_OWNER,
pk.constraint_name PK_NAME,
pk.table_name PK_TABLE_NAME,
fk.owner FK_OWNER,
fk.constraint_name FK_NAME,
fk.table_name FK_TABLE_NAME,
fk.delete_rule FK_DELETE_RULE,
ind_col.INDEX_NAME FK_INDEX_NAME,
ind.index_type FK_INDEX_TYPE,
con_col.COLUMN_NAME FK_INDEX_COLUMN_NAME,
con_col.POSITION FK_INDEX_COLUMN_POSITION,
decode(ind_col.INDEX_NAME,
NULL,
NULL,
NVL(x_ind.status, 'VALID')) IS_IND_VALID,
decode(ind_col.INDEX_NAME,
NULL,
NULL,
NVL(x_ind_part.status, 'VALID')) IS_IND_PART_VALID
from (select * from dba_constraints where constraint_type = 'R') fk,
(select * from dba_constraints where constraint_type = 'P') pk,
dba_cons_columns con_col,
dba_ind_columns ind_col,
dba_indexes ind,
(select index_owner, index_name, status
from dba_ind_partitions
where status <> 'VALID') x_ind_part,
(select owner as index_owner, index_name, status
from dba_indexes
where status <> 'VALID') x_ind
where fk.r_constraint_name = pk.constraint_name
and pk.owner = fk.owner
and fk.owner = con_col.owner
and fk.table_name = con_col.table_name
and fk.constraint_name = con_col.CONSTRAINT_NAME
and con_col.owner = ind_col.TABLE_OWNER(+)
and con_col.TABLE_NAME = ind_col.TABLE_NAME(+)
and con_col.COLUMN_NAME = ind_col.COLUMN_NAME(+)
and ind_col.INDEX_OWNER = ind.owner(+)
and ind_col.INDEX_NAME = ind.index_name(+)
and ind_col.INDEX_OWNER = x_ind.index_owner(+)
and ind_col.INDEX_NAME = x_ind.index_name(+)
and ind_col.INDEX_OWNER = x_ind_part.index_owner(+)
and ind_col.INDEX_NAME = x_ind_part.index_name(+))
where FK_INDEX_NAME is null
order by FK_OWNER ASC
;
/* 性能相关 */
prompt <h3 id='performance'>Performance Info</h3>
--逻辑读最多
prompt <p>Physical Read Top 10
select *
from (select sql_id,
s.EXECUTIONS,
s.LAST_LOAD_TIME,
s.FIRST_LOAD_TIME,
s.DISK_READS,
s.BUFFER_GETS
from v$sql s
where s.buffer_gets > 300
order by buffer_gets desc)
where rownum <= 10
;
--物理读最多
prompt <p>Logical Read Top 10
select *
from (select sql_id,
s.EXECUTIONS,
s.LAST_LOAD_TIME,
s.FIRST_LOAD_TIME,
s.DISK_READS,
s.BUFFER_GETS,
s.PARSE_CALLS
from v$sql s
where s.disk_reads > 300
order by disk_reads desc)
where rownum<=10
;
--执行次数最多
prompt <p>Execution Top 10
select *
from (select sql_id,
s.EXECUTIONS,
s.LAST_LOAD_TIME,
s.FIRST_LOAD_TIME,
s.DISK_READS,
s.BUFFER_GETS,
s.PARSE_CALLS
from v$sql s
order by s.EXECUTIONS desc)
where rownum <= 10
;
--解析次数最多
prompt <p>Parse Top 10
select *
from (select sql_id,
s.EXECUTIONS,
s.LAST_LOAD_TIME,
s.FIRST_LOAD_TIME,
s.DISK_READS,
s.BUFFER_GETS,
s.PARSE_CALLS
from v$sql s
order by s.PARSE_CALLS desc)
where rownum <= 10
;
--磁盘排序最多
prompt <p>Sorts(disk) Top 10
select sess.username, sql.address, sort1.blocks
from v$session sess, v$sqlarea sql, v$sort_usage sort1
where sess.serial# = sort1.session_num
and sort1.sqladdr = sql.address
and sort1.sqlhash = sql.hash_value
and sort1.blocks > 200
order by sort1.blocks desc
;
--查询共享内存占有率
prompt <p>Sharable Memory
select count(*),round(sum(sharable_mem)/1024/1024,2)
from v$db_object_cache a
;
--检查统计信息是否被收集
prompt <p>Optimizer Stats Info
select t.job_name,t.program_name,t.state,t.enabled
from dba_scheduler_jobs t
where job_name = 'GATHER_STATS_JOB'
;
select client_name,status
from dba_autotask_client
;
select window_next_time,autotask_status
from DBA_AUTOTASK_WINDOW_CLIENTS
;
--检查哪些未被收集或者很久没收集
prompt <p>Out-of-date Optimizer Stats
select owner, count(*)
from dba_tab_statistics t
where (t.last_analyzed is null or t.last_analyzed < sysdate - 100)
and table_name not like 'BIN$%'
group by owner
order by owner
;
--被收集统计信息的临时表
prompt <p>Temporary Table with Optimizer Stat
select owner, table_name, t.last_analyzed, t.num_rows, t.blocks
from dba_tables t
where t.temporary = 'Y'
and last_analyzed is not null
;
prompt </body>
prompt <html>
spool off;
clear column compute;
/* 获取awr、addm、ash */
--以下不使用html标签
SET markup html off spool ON pre off entmap off
set trim on
set trimspool on
set heading off
--查询dbid、instance_number
column dbid new_value awr_dbid
column instance_number new_value awr_inst_num
select dbid from v$database;
select instance_number from v$instance;
--半小时内的ash报告
column ashbegintime new_value ashbegin_str
column ashendtime new_value ashend_str
select to_char(sysdate-3/144,'yyyymmddhh24miss') as ashbegintime, to_char(sysdate,'yyyymmddhh24miss') as ashendtime from dual;
column ashfile_name new_value ashfile
select 'ashrpt_' || to_char(&&awr_inst_num) || '_' || to_char(&&ashbegin_str) || '_' || to_char(&&ashend_str) ashfile_name from dual;
spool &&ashfile..html
select * from table(dbms_workload_repository.ash_report_html(to_char(&&awr_dbid),to_char(&&awr_inst_num),to_date(to_char(&&ashbegin_str),'yyyymmddhh24miss'),to_date(to_char(&&ashend_str),'yyyymmddhh24miss')));
spool off;
--按需创建awr断点
column begin_snap new_value awr_begin_snap
column end_snap new_value awr_end_snap
select max(snap_id) begin_snap
from dba_hist_snapshot
where snap_id < (select max(snap_id) from dba_hist_snapshot);
select max(snap_id) end_snap from dba_hist_snapshot;
declare
snap_maxtime date;
snap_mintime date;
begin
select max(end_interval_time) + 0
into snap_maxtime
from dba_hist_snapshot
where snap_id = to_number(&&awr_end_snap);
select max(end_interval_time) + 0