• Arun Kumar

Check table size in oracle

Once you run the query, it will ask your table name. Enter the table name in the format of owner.tablename. Eg – scott.emp

select segment_name,segment_type, sum(bytes/1024/1024/1024) GB
 from dba_segments
 where segment_name='&Your_Table_Name' 
group by segment_name,segment_type;
 

27 views

Recent Posts

See All

Temp Tablespace utilization

It is very common that as a DBA you will encounter ‘ORA-1652: unable to extend temp segment’. Handling temporary tablespace is different than permanent tablespaces inside Oracle. On a high level, temp

Estimate flashback destination size

Sometimes application team will ask DBA to enable flashback for x number of days. In such case, a DBA needs to estimate the flashback space required for x number of days in order to store the flashbac

Datafile utilization check

When you want to shrink a datafile, you must always check the single datafile utilization. In case if you shrink datafile more than the used size, it will fail. Below query gives the datafile utilizat

  • Facebook
  • Twitter
  • YouTube
  • Instagram

© 2020 by DBA Genesis

Feedback