Question

I have a database named “My_Enterprise_Data”. I need to find the size that it occupies on the disk.

How do I find it out?

Is the query, SELECT sum(bytes)/1024/1024 AS "Size in MB" FROM user_segments run against the My_Enterprise_Data correct?

Answer 1

The following will show you the data files used by oracle:

select TABLESPACE_NAME "Tablspace",  
 FILE_NAME "Filename",  
 BYTES/1024/1024 "Size MB", 
 MAXBYTES/1024/1024 "Maximum Size MB", 
 AUTOEXTENSIBLE "Autoextensible"
from SYS.DBA_DATA_FILES

You can then look for the tablespace used by the My_Enterprise_Data schema