Tablespace autoextend on multiple datafiles

Question

There is a tablespace with 3 data files, one of them having AUTOEXTEND option ON. I am trying to understand why space is not allocated on datafile with AUTOEXEND option ON.
Thanks in advance..

Answer 1

Please also have a look at those scripts. They may help you;
select a.TABLESPACE_NAME, round(total,1) Total_M, round(free) Free_M, round(100*(1-free/total),1) Usage
from (select TABLESPACE_NAME,sum(BYTES)/(1024*1024) total from dba_data_files group by TABLESPACE_NAME) a
,(select TABLESPACE_NAME,sum(BYTES)/(1024*1024) free from dba_free_space group by TABLESPACE_NAME) b
where a.TABLESPACE_NAME=b.TABLESPACE_NAME(+) order by 4 DESC;
select df.tablespace_name ,
df.file_name ,
df.file_id ,
df.totalspace,
fs.freespace from
(select
tablespace_name,
file_name,
file_id,
round(sum(bytes)/1024/1024,2) as totalspace
from dba_data_files
group by tablespace_name,file_name,file_id) df,
(select
tablespace_name,
file_id,
round(sum(bytes)/1024/1024,2) as freespace
from dba_free_space
group by tablespace_name,file_id) fs
where df.file_id=fs.file_id 
order by 5 desc;