oracle 表空间、用户名 相关语句

一、oracle查询表空间文件所在路径

select * from dba_data_files t  where t.tablespace_name='FLW'

二、计算出表空间各相关数据

SELECT file_name 物理路径,t1 表空间,z 总表空间M,z-s 已用表空间,s 剩余表空间,ROUND((z-s)/z*100,2) "使用率%"
     From （Select  tablespace_name t1,round(SUM(bytes / (1024 * 1024)), 0) s
              From DBA_FREE_SPACE Group by tablespace_name),
           (Select file_name ,tablespace_name t2,round(SUM(bytes / (1024 * 1024)), 0) z
           From DBA_DATA_FILES Group by file_name,tablespace_name) Where t1=t2;

--查询表空间使用情况（低版本也可以用）
SELECT Upper(F.TABLESPACE_NAME) "表空间名",
D.TOT_GROOTTE_MB "表空间大小(M)",
D.TOT_GROOTTE_MB - F.TOTAL_BYTES "已使用空间(M)",
To_char(Round(( D.TOT_GROOTTE_MB - F.TOTAL_BYTES ) / D.TOT_GROOTTE_MB * 100, 2), '990.99')
|| '%' "使用比",
F.TOTAL_BYTES "空闲空间(M)",
F.MAX_BYTES "最大块(M)"
FROM (SELECT TABLESPACE_NAME,
Round(Sum(BYTES) / ( 1024 * 1024 ), 2) TOTAL_BYTES,
Round(Max(BYTES) / ( 1024 * 1024 ), 2) MAX_BYTES
FROM SYS.DBA_FREE_SPACE
GROUP BY TABLESPACE_NAME) F,
(SELECT DD.TABLESPACE_NAME,
Round(Sum(DD.BYTES) / ( 1024 * 1024 ), 2) TOT_GROOTTE_MB
FROM SYS.DBA_DATA_FILES DD
GROUP BY DD.TABLESPACE_NAME) D
WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME

三、修改表空间自动增长

 ALTER DATABASE DATAFILE 'c:SmartDB01.ora' AUTOEXTEND ON;   --设置数据文件自动增长 

四、修改表空间大小

alter database datafile '/home/db/..../tbs.dbf' resize 100M;

五、新增表空间

create tablespace data_config datafile 'D:ORACLEappAdministratororadataorcldata_config.dbf' size 50m autoextend on;

六、新增用户 

create user data_config identified by dcjet default tablespace data_config temporary tablespace temp;

grant dba,resource,connect to data_config;

七、查询出一个用户用了几个表空间

SELECT   owner, tablespace_name, ROUND (SUM (BYTES) / 1024 / 1024, 2) "USED(M)"
    FROM dba_segments
GROUP BY owner, tablespace_name
ORDER BY owner　DESC;

八、查询表空间使用情况

--查询表空间使用情况
SELECT Upper(F.TABLESPACE_NAME)         "表空间名",
       D.TOT_GROOTTE_MB                 "表空间大小(M)",
       D.TOT_GROOTTE_MB - F.TOTAL_BYTES "已使用空间(M)",
       To_char(Round(( D.TOT_GROOTTE_MB - F.TOTAL_BYTES ) / D.TOT_GROOTTE_MB * 100, 2), '990.99')
       || '%'                           "使用比",
       F.TOTAL_BYTES                    "空闲空间(M)",
       F.MAX_BYTES                      "最大块(M)"
FROM   (SELECT TABLESPACE_NAME,
               Round(Sum(BYTES) / ( 1024 * 1024 ), 2) TOTAL_BYTES,
               Round(Max(BYTES) / ( 1024 * 1024 ), 2) MAX_BYTES
        FROM   SYS.DBA_FREE_SPACE
        GROUP  BY TABLESPACE_NAME) F,
       (SELECT DD.TABLESPACE_NAME,
               Round(Sum(DD.BYTES) / ( 1024 * 1024 ), 2) TOT_GROOTTE_MB
        FROM   SYS.DBA_DATA_FILES DD
        GROUP  BY DD.TABLESPACE_NAME) D
WHERE  D.TABLESPACE_NAME = F.TABLESPACE_NAME

八、表压缩 

--使能行移动
alter table tablename enable row movement;
--表压缩
alter table tablename shrink space;

--如果有函数索引就会有如下错误：

 ORA-10631: SHRINK clause should not be specified for this object

九、新建表空间

alter tablespace 表空间名 add datafile '数据文件路径' size 10000m autoextend on next 1000m;

 alter tablespace 表空间名 add datafile '数据文件路径' size 10000m autoextend on next 1000m;

十、表空间使用情况

---查看前一天所有表空间的增长量
select C.tablespace_name,
       D."Total(MB)",
       D."Used(MB)" - C."Used(MB)" AS "Increment(MB)",
       to_char(trunc(sysdate - 1),'yyyy/mm/dd') "TIME"
  from (select B.name tablespace_name,
               case when B.name not like 'UNDO%' then round(A.tablespace_size * 8 / 1024) 
                    when B.name like 'UNDO%' then round(A.tablespace_size * 8 / 1024 / 2)   
                    END as "Total(MB)",
               round(A.tablespace_usedsize*8 / 1024) "Used(MB)",
               A.rtime
          from DBA_HIST_TBSPC_SPACE_USAGE A, v$tablespace B
         where A.tablespace_id = B.TS#
           and to_char(to_date(replace(rtime, '/', null),
                               'mmddyyyy hh24:mi:ss'),
                       'yyyymmdd hh24:mi') =
               to_char(trunc(sysdate - 1), 'yyyymmdd hh24:mi')) C,
       (select B.name tablespace_name,
               case when B.name not like 'UNDO%' then round(A.tablespace_size * 8 / 1024) 
                    when B.name like 'UNDO%' then round(A.tablespace_size * 8 / 1024 / 2)   
                    END as "Total(MB)",
               round(A.tablespace_usedsize*8 / 1024) "Used(MB)",
               A.rtime
          from DBA_HIST_TBSPC_SPACE_USAGE A, v$tablespace B
         where A.tablespace_id = B.TS#
           and to_char(to_date(replace(rtime, '/', null),
                               'mmddyyyy hh24:mi:ss'),
                       'yyyymmdd hh24:mi') =
               to_char(trunc(sysdate), 'yyyymmdd hh24:mi')) D
 where C.tablespace_name = D.tablespace_name;
---查看前一周所有表空间的增长量
select C.tablespace_name,
       D."Total(MB)",
       D."Used(MB)" - C."Used(MB)" AS "Increment(MB)",
       to_char(next_day(trunc(sysdate),2)-7,'yyyy/mm/dd')||'--'||to_char(next_day(trunc(sysdate),2)-7,'yyyy/mm/dd') "TIME"
  from (select B.name tablespace_name,
               case when B.name not like 'UNDO%' then round(A.tablespace_size * 8 / 1024) 
                    when B.name like 'UNDO%' then round(A.tablespace_size * 8 / 1024 / 2)   
                    END as "Total(MB)",
               round(A.tablespace_usedsize*8 / 1024) "Used(MB)",
               A.rtime
          from DBA_HIST_TBSPC_SPACE_USAGE A, v$tablespace B
         where A.tablespace_id = B.TS#
           and to_char(to_date(replace(rtime, '/', null),
                               'mmddyyyy hh24:mi:ss'),
                       'yyyymmdd hh24:mi') =
               to_char(next_day(trunc(sysdate),2)-14,'yyyymmdd hh24:mi')) C,
       (select B.name tablespace_name,
               case when B.name not like 'UNDO%' then round(A.tablespace_size * 8 / 1024) 
                    when B.name like 'UNDO%' then round(A.tablespace_size * 8 / 1024 / 2)   
                    END as "Total(MB)",
               round(A.tablespace_usedsize*8 / 1024) "Used(MB)",
               A.rtime
          from DBA_HIST_TBSPC_SPACE_USAGE A, v$tablespace B
         where A.tablespace_id = B.TS#
           and to_char(to_date(replace(rtime, '/', null),
                               'mmddyyyy hh24:mi:ss'),
                       'yyyymmdd hh24:mi') =
               to_char(next_day(trunc(sysdate),2)-7,'yyyymmdd hh24:mi')) D
 where C.tablespace_name = D.tablespace_name;
---每天使用情况
select B.name tablespace_name,
       case when B.name not like 'UNDO%' then round(A.tablespace_size * 8 / 1024)  
            when B.name like 'UNDO%' then round(A.tablespace_size * 8 / 1024 / 2)   
            END as "Total(MB)总空间",
       round(A.tablespace_usedsize*8 / 1024) "Used(MB)使用空间",
       A.rtime
  from DBA_HIST_TBSPC_SPACE_USAGE A, v$tablespace B
 where A.tablespace_id = B.TS#
   AND B.NAME='NJYTH' 
   and to_char(to_date(replace(rtime, '/', null),
                               'mmddyyyy hh24:mi:ss'),
                       'hh24:mi') =
               to_char(trunc(sysdate), 'hh24:mi') ORDER BY 
               to_date(replace(rtime, '/', null),
                               'mmddyyyy hh24:mi:ss');

十一、查看oracle 分配了几个G的内存

select * from v$parameter where name like '%sga%';

十二、数据库读取情况排名前10统计分析

SELECT *

  FROM (SELECT PARSING_USER_ID EXECUTIONS,

               SORTS,

               COMMAND_TYPE,

               DISK_READS,

               sql_text

          FROM v$sqlarea

         ORDER BY disk_reads DESC)

 WHERE ROWNUM < 10

    SELECT S.SID, S.EVENT, S.WAIT_TIME, W.SEQ#, Q.SQL_TEXT

      FROM V$SESSION_WAIT W, V$SESSION S, V$PROCESS P, V$SQLAREA Q

     WHERE S.PADDR = P.ADDR

       AND S.SID = '14'

       AND S.SQL_ADDRESS = Q.ADDRESS;

       --当前由Oracle引起的CPU100%

十三、--每个session占用的cpu

select ss.sid, se.command, ss.value CPU, se.username, se.program

  from v$sesstat ss, v$session se

 where ss.statistic# in

       (select statistic#

          from v$statname

         where name = 'CPU used by this session')

   and se.sid = ss.sid

   and ss.sid > 6

 order by ss.sid

十四、抓取当前最消耗CPU的sql代码，根据操作系统(os)的spid

SELECT   /*+ ORDERED */

         sql_text

    FROM v$sqltext a

   WHERE (a.hash_value, a.address) IN (

            SELECT DECODE (sql_hash_value,

                           0, prev_hash_value,

                           sql_hash_value

                          ),

                   DECODE (sql_hash_value, 0, prev_sql_addr, sql_address)

              FROM v$session b

             WHERE b.paddr = (SELECT addr

                                FROM v$process c

                               WHERE c.spid = '10401'))

ORDER BY piece ASC

十五、oracle 10以上的高水位问题处理

alter table t_hxhs_entryhead_tmp_log enable row movement;

alter table t_hxhs_entryhead_tmp_log shrink space;

analyze table t_hxhs_entryhead_tmp_log  compute statistics;

十六、-所有分区表TABLE PARTITION占用空间

             select segment_name, sum(bytes) / 1024 / 1024 Mbytese

               from user_segments

              where segment_type = 'TABLE PARTITION'

              group by segment_name

十七、表和索引占用空间情况

select a.segment_name,

       a.Mbytese       total_size,

       b.segment_name table_name,

       b.Mbytese       table_size,

       c.segment_name index_name,

       c.Mbytese       index_size

  from ( --查看所有segment的大小(M)

        select segment_name, sum(bytes) / 1024 / 1024 Mbytese

          from user_segments

         group by segment_name) a

  left join ( --所有表占用空间(M)

             select segment_name, sum(bytes) / 1024 / 1024 Mbytese

               from user_segments

              where segment_type = 'TABLE'

              group by segment_name) b

    on a.segment_name = b.segment_name

  left join ( --所有索引占用空间(M)

             select segment_name, sum(bytes) / 1024 / 1024 Mbytese

               from user_segments

              where segment_type = 'INDEX'

              group by segment_name) c

    on a.segment_name = c.segment_name

 order by total_size desc

---查看前一天所有表空间的增长量select C.tablespace_name,       D."Total(MB)",       D."Used(MB)" - C."Used(MB)" AS "Increment(MB)",       to_char(trunc(sysdate - 1),'yyyy/mm/dd') "TIME"  from (select B.name tablespace_name,               case when B.name not like 'UNDO%' then round(A.tablespace_size * 8 / 1024)                     when B.name like 'UNDO%' then round(A.tablespace_size * 8 / 1024 / 2)                       END as "Total(MB)",               round(A.tablespace_usedsize*8 / 1024) "Used(MB)",               A.rtime          from DBA_HIST_TBSPC_SPACE_USAGE A, v$tablespace B         where A.tablespace_id = B.TS#           and to_char(to_date(replace(rtime, '/', null),                               'mmddyyyy hh24:mi:ss'),                       'yyyymmdd hh24:mi') =               to_char(trunc(sysdate - 1), 'yyyymmdd hh24:mi')) C,       (select B.name tablespace_name,               case when B.name not like 'UNDO%' then round(A.tablespace_size * 8 / 1024)                     when B.name like 'UNDO%' then round(A.tablespace_size * 8 / 1024 / 2)                       END as "Total(MB)",               round(A.tablespace_usedsize*8 / 1024) "Used(MB)",               A.rtime          from DBA_HIST_TBSPC_SPACE_USAGE A, v$tablespace B         where A.tablespace_id = B.TS#           and to_char(to_date(replace(rtime, '/', null),                               'mmddyyyy hh24:mi:ss'),                       'yyyymmdd hh24:mi') =               to_char(trunc(sysdate), 'yyyymmdd hh24:mi')) D where C.tablespace_name = D.tablespace_name;---查看前一周所有表空间的增长量select C.tablespace_name,       D."Total(MB)",       D."Used(MB)" - C."Used(MB)" AS "Increment(MB)",       to_char(next_day(trunc(sysdate),2)-7,'yyyy/mm/dd')||'--'||to_char(next_day(trunc(sysdate),2)-7,'yyyy/mm/dd') "TIME"  from (select B.name tablespace_name,               case when B.name not like 'UNDO%' then round(A.tablespace_size * 8 / 1024)                     when B.name like 'UNDO%' then round(A.tablespace_size * 8 / 1024 / 2)                       END as "Total(MB)",               round(A.tablespace_usedsize*8 / 1024) "Used(MB)",               A.rtime          from DBA_HIST_TBSPC_SPACE_USAGE A, v$tablespace B         where A.tablespace_id = B.TS#           and to_char(to_date(replace(rtime, '/', null),                               'mmddyyyy hh24:mi:ss'),                       'yyyymmdd hh24:mi') =               to_char(next_day(trunc(sysdate),2)-14,'yyyymmdd hh24:mi')) C,       (select B.name tablespace_name,               case when B.name not like 'UNDO%' then round(A.tablespace_size * 8 / 1024)                     when B.name like 'UNDO%' then round(A.tablespace_size * 8 / 1024 / 2)                       END as "Total(MB)",               round(A.tablespace_usedsize*8 / 1024) "Used(MB)",               A.rtime          from DBA_HIST_TBSPC_SPACE_USAGE A, v$tablespace B         where A.tablespace_id = B.TS#           and to_char(to_date(replace(rtime, '/', null),                               'mmddyyyy hh24:mi:ss'),                       'yyyymmdd hh24:mi') =               to_char(next_day(trunc(sysdate),2)-7,'yyyymmdd hh24:mi')) D where C.tablespace_name = D.tablespace_name;---每天使用情况select B.name tablespace_name,       case when B.name not like 'UNDO%' then round(A.tablespace_size * 8 / 1024)              when B.name like 'UNDO%' then round(A.tablespace_size * 8 / 1024 / 2)               END as "Total(MB)总空间",       round(A.tablespace_usedsize*8 / 1024) "Used(MB)使用空间",       A.rtime  from DBA_HIST_TBSPC_SPACE_USAGE A, v$tablespace B where A.tablespace_id = B.TS#   AND B.NAME='NJYTH'    and to_char(to_date(replace(rtime, '/', null),                               'mmddyyyy hh24:mi:ss'),                       'hh24:mi') =               to_char(trunc(sysdate), 'hh24:mi') ORDER BY                to_date(replace(rtime, '/', null),                               'mmddyyyy hh24:mi:ss');