Tag Archives: database size growth estimate

Check tablespace size growth forcast in Oracle

Tablespace Capacity growth rate forecast in Oracle

Find the table space utilization for future estimation of database growth and allocate/add more hard disk to system before space crunch.


set feedback off
set lines 180
set head on
col "Create Time" format a11
col name format a30
col curr_size_mb format 99999999
col growth_per_day format 99999999.9
col growth_120_days format 99999999.9
col growth_240_days format 99999999.9
col projection_365_days_mb format 99999999
select min(creation_time) "Create Time", ts.name, round(sum(df.bytes)/1024/1024) curr_size_mb,
round( (sum(df.bytes)/1024/1024)/round(sysdate-min(creation_time)),1) growth_per_day,
round( (sum(df.bytes)/1024/1024)/round(sysdate-min(creation_time)) * 120,1) growth_120_days,
round( (sum(df.bytes)/1024/1024)/round(sysdate-min(creation_time)) * 240,1) growth_240_days,
round( (sum(bytes)/1024/1024)+((sum(df.bytes)/1024/1024)/round(sysdate-min(creation_time))*365) ) projection_365_days_mb
from V$datafile df ,V$tablespace ts where df.ts#=ts.ts# group by df.ts#,ts.name order by df.ts#;