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  • Database Free space report

    Database Free space report

    • Tablespace Name: name of tablespace, leading '*' indicates a good locally managed tablespace, leading blank means it is a bad dictionary managed tablespace. Second character of A implies ASSM managed storage, second character of M implies manually managed (pctused, freelists, etc are used to control space utilization)
    • Kbytes: allocated space of the tablespace, sum of kbytes consumed by all datafiles associated with tablespace.
    • Used: space in the tablespace that is used by some segment.
    • Free: space in the tablespace not allocated to any segment.
    • %Used: ratio of free to allocated space
    • largest: mostly useful with dictionary managed tablespaces, the size of the largest contigously set of blocks available. If this number in a dictionary managed tablespace is smaller than the next extent for some object, that object could fail with "out of space" even if the FREE column says there is lots of free space.
    • MaxPoss Kbytes: the autoextend max size (note CAN be smaller than the allocated size!!!! you can set the maxsize to be less than the current size of a file)
    • %Max Used: how much of the maximum autoextend size has been used so far
    set linesize 121
    -------------------------------------------------------
    -- free.sql  
    --
    -- This SQL Plus script lists freespace by tablespace
    --------------------------------------------------------
    
    column dummy noprint
    column  pct_used format 999.9       heading "%|Used" 
    column  name    format a19      heading "Tablespace Name" 
    column  Kbytes   format 999,999,999    heading "KBytes" 
    column  used    format 999,999,999   heading "Used" 
    column  free    format 999,999,999  heading "Free" 
    column  largest    format 999,999,999  heading "Largest" 
    column  max_size format 999,999,999 heading "MaxPoss|Kbytes"
    column  pct_max_used format 999.9       heading "%|Max|Used" 
    break   on report 
    compute sum of kbytes on report 
    compute sum of free on report 
    compute sum of used on report 
    
    select (select decode(extent_management,'LOCAL','*',' ') || 
                   decode(segment_space_management,'AUTO','a ','m ')
    	      from dba_tablespaces where tablespace_name = b.tablespace_name) || nvl(b.tablespace_name, 
    			 nvl(a.tablespace_name,'UNKOWN')) name,
    	   kbytes_alloc kbytes, 
    	   kbytes_alloc-nvl(kbytes_free,0) used,
    	   nvl(kbytes_free,0) free, 
    	   ((kbytes_alloc-nvl(kbytes_free,0))/ 
    						  kbytes_alloc)*100 pct_used,
    	   nvl(largest,0) largest,
    	   nvl(kbytes_max,kbytes_alloc) Max_Size,
    	   decode( kbytes_max, 0, 0, (kbytes_alloc/kbytes_max)*100) pct_max_used
    from ( select sum(bytes)/1024 Kbytes_free, 
    			  max(bytes)/1024 largest,
    			  tablespace_name
    	   from  sys.dba_free_space 
    	   group by tablespace_name ) a,
         ( select sum(bytes)/1024 Kbytes_alloc, 
    			  sum(maxbytes)/1024 Kbytes_max,
    			  tablespace_name 
    	   from sys.dba_data_files 
    	   group by tablespace_name 
    	   union all
          select sum(bytes)/1024 Kbytes_alloc, 
    			  sum(maxbytes)/1024 Kbytes_max,
    			  tablespace_name 
    	   from sys.dba_temp_files 
    	   group by tablespace_name )b
    where a.tablespace_name (+) = b.tablespace_name
    order by &1
    /
    
    
    

    If you are stuck on software written last century:

    --------------------------------------------------------
    -- free.sql
    --
    -- This SQL Plus script lists freespace by tablespace
    --------------------------------------------------------
                                                                                                             
    column dummy noprint
    column  pct_used format 999.9       heading "%|Used"
    column  name    format a19      heading "Tablespace Name"
    column  Kbytes   format 999,999,999    heading "KBytes"
    column  used    format 999,999,999   heading "Used"
    column  free    format 999,999,999  heading "Free"
    column  largest    format 999,999,999  heading "Largest"
    column  max_size format 999,999,999 heading "MaxPoss|Kbytes"
    column  pct_max_used format 999.9       heading "%|Max|Used"
    break   on report
    compute sum of kbytes on report
    compute sum of free on report
    compute sum of used on report
                                                                                                             
    select (select decode(extent_management,'LOCAL','*',' ')
              from dba_tablespaces where tablespace_name = b.tablespace_name) ||
    nvl(b.tablespace_name,
                 nvl(a.tablespace_name,'UNKOWN')) name,
           kbytes_alloc kbytes,
           kbytes_alloc-nvl(kbytes_free,0) used,
           nvl(kbytes_free,0) free,
           ((kbytes_alloc-nvl(kbytes_free,0))/
                              kbytes_alloc)*100 pct_used,
           nvl(largest,0) largest,
           nvl(kbytes_max,kbytes_alloc) Max_Size,
           decode( kbytes_max, 0, 0, (kbytes_alloc/kbytes_max)*100) pct_max_used
    from ( select sum(bytes)/1024 Kbytes_free,
                  max(bytes)/1024 largest,
                  tablespace_name
           from  sys.dba_free_space
           group by tablespace_name ) a,
         ( select sum(bytes)/1024 Kbytes_alloc,
                  sum(maxbytes)/1024 Kbytes_max,
                  tablespace_name
           from sys.dba_data_files
           group by tablespace_name
           union all
          select sum(bytes)/1024 Kbytes_alloc,
                  sum(maxbytes)/1024 Kbytes_max,
                  tablespace_name
           from sys.dba_temp_files
           group by tablespace_name )b
    where a.tablespace_name (+) = b.tablespace_name
    order by &1
    /
    
    All information and materials provided here are provided "as-is"; Oracle disclaims all express and implied warranties, including, the implied warranties of merchantability or fitness for a particular use. Oracle shall not be liable for any damages, including, direct, indirect, incidental, special or consequential damages for loss of profits, revenue, data or data use, incurred by you or any third party in connection with the use of this information or these material
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  • 原文地址:https://www.cnblogs.com/yaoyangding/p/12595177.html
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