Oracle 临时表空间收缩代码,PLSQL代码库,德仔网

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【PLSQL】 Oracle 临时表空间收缩
作者:itcoder / 发布于2017/4/5/ 1134
一、收缩临时表空间文件
 alter tablespace temp shrink tempfile '/jeep/Oracle/oradata/ORCL/temp01.dbf' keep 2048m;
 
二、关闭自动扩展
 alter database tempfile '/jeep/oracle/oradata/ORCL/temp01.dbf' autoextend off;
三、查看临时表空间使用情况
SELECT se.username,
       sid,
       serial#,
       sql_address,
       machine,
       program,
       tablespace,
       segtype,
       contents
  FROM v$session se, v$sort_usage su
 WHERE se.saddr = su.session_addr

Select f.tablespace_name,
       d.file_name "Tempfile name",
       round((f.bytes_free + f.bytes_used) / 1024 / 1024, 2) "total MB",
       round(((f.bytes_free + f.bytes_used) - nvl(p.bytes_used, 0)) / 1024 / 1024,
             2) "Free MB",
       round(nvl(p.bytes_used, 0) / 1024 / 1024, 2) "Used MB",
       round((round(nvl(p.bytes_used, 0) / 1024 / 1024, 2) /
             round((f.bytes_free + f.bytes_used) / 1024 / 1024, 2)) * 100,
             2) as"Used_Rate(%)"
  from SYS.V_$TEMP_SPACE_HEADER f,
       DBA_TEMP_FILES           d,
       SYS.V_$TEMP_EXTENT_POOL  p
 where f.tablespace_name(+) = d.tablespace_name
   and f.file_id(+) = d.file_id
   and p.file_id(+) = d.file_id;


select tablespace_name,
       file_name,
       bytes / 1024 / 1024 file_size,
       autoextensible
  from dba_temp_files;

四、表空间使用情况

SELECT a.tablespace_name "表空间名",
       total "表空间大小",
       free "表空间剩余大小",
       (total - free) "表空间使用大小",
       total / (1024 * 1024 * 1024) "表空间大小(G)",
       free / (1024 * 1024 * 1024) "表空间剩余大小(G)",
       (total - free) / (1024 * 1024 * 1024) "表空间使用大小(G)",
       round((total - free) / total, 4) * 100 "使用率 %"
  FROM (SELECT tablespace_name, SUM(bytes) free
          FROM dba_free_space
         GROUP BY tablespace_name) a,
       (SELECT tablespace_name, SUM(bytes) total
          FROM dba_data_files
         GROUP BY tablespace_name) b
 WHERE a.tablespace_name = b.tablespace_name

--7、查看数据库库对象 
SELECT owner, object_type, status, COUNT(*) count#
  FROM all_objects
 GROUP BY owner, object_type, status;
--8、查看数据库的版本　 
SELECT version
  FROM product_component_version
 WHERE substr(product, 1, 6) = 'Oracle';
--9、查看数据库的创建日期和归档方式 
SELECT created, log_mode, log_mode FROM v$database;
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