如何通过shell脚本查看数据库表空间使用情况

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这篇文章主要介绍如何通过 shell 脚本查看数据库表空间使用情况，文中介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们一定要看完！

脚本如下：
sqlplus -s $DB_CONN_STR@$SH_DB_SID EOF
set echo off heading on underline on;
column inst_num heading Inst Num new_value inst_num format 99999;
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 format 9999999999 just c;

prompt
prompt Current Instance
prompt ~~~~~~~~~~~~~~~~

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;

set term on feedback off lines 130 pagesize 999 tab off trims on
column MB format 999,999,999 heading Total MB
column free format 9,999,999 heading Free MB
column used format 99,999,999 heading Used MB
column Largest format 999,999 heading LrgstMB
column tablespace_name format a20 heading Tablespace
column status format a3 truncated
column max_extents format 99999999999 heading MaxExt
col extent_management for a1 trunc head M
col allocation_type for a1 trunc head A
col Ext_Size for a4 trunc head Init
column pfree format a3 trunc heading %Fr

break on report
compute sum of MB on report
compute sum of free on report
compute sum of used on report

select
d.tablespace_name,
decode(d.status,
ONLINE , OLN ,
READ ONLY , R/O ,
d.status) status,
d.extent_management,
decode(d.allocation_type,
USER , ,
d.allocation_type) allocation_type,
(case
when initial_extent 1048576
then lpad(round(initial_extent/1024,0),3)|| K
else lpad(round(initial_extent/1024/1024,0),3)|| M
end) Ext_Size,
NVL (a.bytes / 1024 / 1024, 0) MB,
NVL (f.bytes / 1024 / 1024, 0) free,
(NVL (a.bytes / 1024 / 1024, 0) – NVL (f.bytes / 1024 / 1024, 0)) used,
NVL (l.large / 1024 / 1024, 0) largest,
d.MAX_EXTENTS ,
lpad(round((f.bytes/a.bytes)*100,0),3) pfree,
(case when round(f.bytes/a.bytes*100,0) = 20 then else * end) alrt
FROM sys.dba_tablespaces d,
(SELECT tablespace_name, SUM(bytes) bytes
FROM dba_data_files
GROUP BY tablespace_name) a,
(SELECT tablespace_name, SUM(bytes) bytes
FROM dba_free_space
GROUP BY tablespace_name) f,
(SELECT tablespace_name, MAX(bytes) large
FROM dba_free_space
GROUP BY tablespace_name) l
WHERE d.tablespace_name = a.tablespace_name(+)
AND d.tablespace_name = f.tablespace_name(+)
AND d.tablespace_name = l.tablespace_name(+)
AND NOT (d.extent_management LIKE LOCAL AND d.contents LIKE TEMPORARY)
UNION ALL
select
d.tablespace_name,
decode(d.status,
ONLINE , OLN ,
READ ONLY , R/O ,
d.status) status,
d.extent_management,
decode(d.allocation_type,
UNIFORM , U ,
SYSTEM , A ,
USER , ,
d.allocation_type) allocation_type,
(case
when initial_extent 1048576
then lpad(round(initial_extent/1024,0),3)|| K
else lpad(round(initial_extent/1024/1024,0),3)|| M
end) Ext_Size,
NVL (a.bytes / 1024 / 1024, 0) MB,
(NVL (a.bytes / 1024 / 1024, 0) – NVL (t.bytes / 1024 / 1024, 0)) free,
NVL (t.bytes / 1024 / 1024, 0) used,
NVL (l.large / 1024 / 1024, 0) largest,
d.MAX_EXTENTS ,
lpad(round(nvl(((a.bytes-t.bytes)/NVL(a.bytes,0))*100,100),0),3) pfree,
(case when nvl(round(((a.bytes-t.bytes)/NVL(a.bytes,0))*100,0),100) = 20 then else * end) alrt
FROM sys.dba_tablespaces d,
(SELECT tablespace_name, SUM(bytes) bytes
FROM dba_temp_files
GROUP BY tablespace_name order by tablespace_name) a,
(SELECT tablespace_name, SUM(bytes_used ) bytes
FROM v\$temp_extent_pool
GROUP BY tablespace_name) t,
(SELECT tablespace_name, MAX(bytes_cached) large
FROM v\$temp_extent_pool
GROUP BY tablespace_name order by tablespace_name) l
WHERE d.tablespace_name = a.tablespace_name(+)
AND d.tablespace_name = t.tablespace_name(+)
AND d.tablespace_name = l.tablespace_name(+)
AND d.extent_management LIKE LOCAL
AND d.contents LIKE TEMPORARY
ORDER by 1
/
prompt
exit
EOF