2026-03-12 20:23:15

timhall/monitoring/free_space.sql

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+-- -----------------------------------------------------------------------------------
+-- File Name    : https://oracle-base.com/dba/monitoring/free_space.sql
+-- Author       : Tim Hall
+-- Description  : Displays space usage for each datafile.
+-- Requirements : Access to the DBA views.
+-- Call Syntax  : @free_space
+-- Last Modified: 15-JUL-2000 - Created.
+--                12-OCT-2012 - Amended to include auto-extend and maxsize.
+-- -----------------------------------------------------------------------------------
+SET PAGESIZE 100
+SET LINESIZE 265
+
+COLUMN tablespace_name FORMAT A20
+COLUMN file_name FORMAT A50
+
+SELECT df.tablespace_name,
+       df.file_name,
+       df.size_mb,
+       f.free_mb,
+       df.max_size_mb,
+       f.free_mb + (df.max_size_mb - df.size_mb) AS max_free_mb,
+       RPAD(' '|| RPAD('X',ROUND((df.max_size_mb-(f.free_mb + (df.max_size_mb - df.size_mb)))/max_size_mb*10,0), 'X'),11,'-') AS used_pct
+FROM   (SELECT file_id,
+               file_name,
+               tablespace_name,
+               TRUNC(bytes/1024/1024) AS size_mb,
+               TRUNC(GREATEST(bytes,maxbytes)/1024/1024) AS max_size_mb
+        FROM   dba_data_files) df,
+       (SELECT TRUNC(SUM(bytes)/1024/1024) AS free_mb,
+               file_id
+        FROM dba_free_space
+        GROUP BY file_id) f
+WHERE  df.file_id = f.file_id (+)
+ORDER BY df.tablespace_name,
+         df.file_name;
+
+PROMPT
+SET PAGESIZE 14