Oracle数据库查看表空间sql语句、查看Oracle数据库表空间剩余 、修改表空间、库备份

一  Oracle数据库查看表空间sql语句

1、oracle查看表空间当前用户

SQL>  select  username,default_tablespace  from user_users;

2、oracle 查看表所属表空间

SQL>  SELECT
 TABLE_NAME,TABLESPACE_NAME
FROM USER_TABLES
where TABLE_NAME = 'test_table'

3、oracle查看表空间大小(单位不是GB)

SQL>   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",
  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

4、oracle查看表空间大小 -单位GB

SQL>   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;

5.--Oracle查看表所属表空间
SQL>   SELECT TABLE_NAME,TABLESPACE_NAME
FROM USER_TABLES
WHERE TABLE_NAME='test_table';

二  查看Oracle数据库表空间剩余

1）查看表空间物理文件的名称及大小 
SQL> SELECT tablespace_name,
file_id,
file_name,
round(bytes/(1024*1024*1024), 2)||' GB' total_space
FROM dba_data_files
ORDER BY tablespace_name;
2）查看表空间的使用情况 
SELECT round(SUM(bytes)/(1024*1024*1024),2)||' GB' AS free_space, tablespace_name 
FROM dba_free_space 
GROUP BY tablespace_name; 

3）查看表空间的使用情况 
SELECT a.tablespace_name, 
round(a.bytes/(1024*1024*1024),2)||' GB' total, 
round(b.bytes/(1024*1024*1024),2)||' GB' used, 
round(c.bytes/(1024*1024*1024),2)||' GB' free, 
round((b.bytes * 100) / a.bytes)||'%' "% USED ", 
round((c.bytes * 100) / a.bytes)||'%' "% FREE " 
FROM sys.sm$ts_avail a, sys.sm$ts_used b, sys.sm$ts_free c 
WHERE a.tablespace_name = b.tablespace_name 
AND a.tablespace_name = c.tablespace_name; 

三  查看、修改Oracle数据库表空间大小

查看所有表空间信息
select tablespace_name,file_id,bytes/1024/1024,file_name
from dba_data_files order by file_id;
 
-- 修改表空间大小
ALTER TABLESPACE WEBSITE ADD DATAFILE
'D:\SDE06.DBF' SIZE 20480M;  -- 此处文件路径可以由上面查到的路径而来

四  ORACLE 查看RMAN的备份信息总结

 

1，检查某个时间段备份情况

SELECT t.START_TIME,t.END_TIME,t.STATUS,t.OBJECT_TYPE,t.RECID
    FROM V$RMAN_STATUS t where t.START_TIME between trunc(sysdate)-2 and sysdate
    and t.OPERATION='BACKUP';

SQL> SELECT ROW_TYPE,COMMAND_ID,OPERATION,STATUS,OBJECT_TYPE FROM V$RMAN_STATUS WHERE START_TIME >= trunc(sysdate);

2，从V$RMAN_BACKUP_JOB_DETAILS中查看RMAN备份更详细的信息

SQL> set sqlformat ansiconsole

SQL> SELECT START_TIME,END_TIME,OUTPUT_DEVICE_TYPE,STATUS,ELAPSED_SECONDS,COMPRESSION_RATIO,INPUT_BYTES_DISPLAY,OUTPUT_BYTES_DISPLAY
       FROM V$RMAN_BACKUP_JOB_DETAILS where START_TIME>=trunc(sysdate)-1 ORDER BY START_TIME DESC;

SQL> SELECT t.COMMAND_ID as "备份名",t.STATUS as "狀態",t.START_TIME as "開始時間",t.TIME_TAKEN_DISPLAY as "所用時間",t.END_TIME as "結束時間"
      ,t.INPUT_TYPE as "類型",t.OUTPUT_DEVICE_TYPE as "輸出設備",t.INPUT_BYTES_DISPLAY as "輸入大小",t.OUTPUT_BYTES_DISPLAY as "輸出大小"
       ,t.OUTPUT_BYTES_PER_SEC_DISPLAY as "輸出速率(每秒)"
      FROM V$RMAN_BACKUP_JOB_DETAILS t where START_TIME>=trunc(sysdate)-7 ORDER BY START_TIME DESC;

3，查看所有备份集详细信息

SQL> 
   SELECT A.RECID "BACKUP SET",A.SET_STAMP,
        DECODE (B.INCREMENTAL_LEVEL,
                '', DECODE (BACKUP_TYPE, 'L', 'Archivelog', 'Full'),
                1, 'Incr-1级',
                0, 'Incr-0级',
                B.INCREMENTAL_LEVEL)
           "Type LV",
        B.CONTROLFILE_INCLUDED "包含CTL",
        DECODE (A.STATUS,
                'A', 'AVAILABLE',
                'D', 'DELETED',
                'X', 'EXPIRED',
                'ERROR')
           "STATUS",
        A.DEVICE_TYPE "Device Type",
        A.START_TIME "Start Time",
        A.COMPLETION_TIME "Completion Time",
        A.ELAPSED_SECONDS "Elapsed Seconds",
        A.BYTES/1024/1024/1024 "Size(G)",
        A.COMPRESSED,
        A.TAG "Tag",
        A.HANDLE "Path"
   FROM GV$BACKUP_PIECE A, GV$BACKUP_SET B
  WHERE A.SET_STAMP = B.SET_STAMP AND A.DELETED = 'NO'
  ORDER BY A.COMPLETION_TIME DESC;

4，查找某个备份集中包含数据文件

 SELECT DISTINCT c.file#,A.SET_STAMP, D.NAME, C.CHECKPOINT_CHANGE#, C.CHECKPOINT_TIME
    FROM V$BACKUP_DATAFILE C, V$BACKUP_PIECE A, V$DATAFILE D
    WHERE A.SET_STAMP = C.SET_STAMP AND D.FILE# = C.FILE#  AND A.DELETED='NO' 
    and a.START_TIME>trunc(sysdate) AND c.set_stamp='999651695' 
    ORDER BY C.FILE#;

5，查询某个备份集中控制文件

 SELECT DISTINCT A.SET_STAMP,D.NAME,C.CHECKPOINT_CHANGE#,C.CHECKPOINT_TIME
    FROM V$BACKUP_DATAFILE C, V$BACKUP_PIECE A, V$CONTROLFILE D
    WHERE A.SET_STAMP = C.SET_STAMP AND C.FILE# = 0 AND A.DELETED = 'NO'
    and a."START_TIME">trunc(sysdate)  AND C.SET_STAMP = '999651780';

6，查看某个备份集中归档日志

SELECT DISTINCT B.SET_STAMP,B.THREAD#,B.SEQUENCE#,B.FIRST_TIME,B.FIRST_CHANGE#,B.NEXT_TIME,B.NEXT_CHANGE#
    FROM V$BACKUP_REDOLOG B, V$BACKUP_PIECE A
    WHERE A.SET_STAMP = B.SET_STAMP AND A.DELETED = 'NO'
    and a.START_TIME>trunc(sysdate) AND B.SET_STAMP ='999651783'
    ORDER BY THREAD#, SEQUENCE#;

7，查看某个备份集SPFILE

SELECT DISTINCT A.SET_STAMP, B.COMPLETION_TIME,HANDLE
    FROM V$BACKUP_SPFILE B, V$BACKUP_PIECE A
    WHERE A.SET_STAMP = B.SET_STAMP AND A.DELETED = 'NO'
    and a."START_TIME">trunc(sysdate) and B.SET_STAMP ='999651798';

8，查询RMAN的配置信息

SELECT NAME,VALUE FROM V$RMAN_CONFIGURATION;