I am having problem with one of our tablespace. I receive a error message saying unable to extent tablespace very often, even though we have enough space in tablespace, And i also observerd that max(bytes) in dba_free_Space is decreasing everyday. We have oracle 11g and tablespaces are locally manged with ASSM.
Space in our tablespace is as follows:
TSName Tot_Size Tot_free PCT_free Max_Free Chunk_Free
User 44,746,932,224 3,656,908,800 8 1,966,080 4,668
I get the above result when i execute the following query:
select a.tablespace_name,sum(a.tots) Tot_Size,
sum(a.largest) Max_Free,sum(a.chunks) Chunks_Free
select tablespace_name,0 tots,sum(bytes) sumb,
max(bytes) largest,count(*) chunks
from dba_free_space a
group by tablespace_name
select tablespace_name,sum(bytes) tots,0,0,0 from
group by tablespace_name) a
group by a.tablespace_name;
Why is the Max_free very less and it keep decreasing daily. I tried to shrink tables and rebuild indexes to gain some space , nothing helped. Can anyone help me if i am missing anything here ? And also please let me know if you need more information
Thanks for your time.