Oracle Disk is near to be full

Question

Hello,
when I checked the oracle disk on windows I found that oracle uses 66 GB and still 842 MB free
is there away to reduce the size?
if I delete some rows from a table, this will reduce the size or I have to do other steps?
Best Regards

Answer 1

please post your database version.
check if undo and temp are in autoextend on mode. if so try to calculate appropriate size required and shrink them.
you can shrink tempfile using "alter database tempfile 'path' resize;' command
but for undo you need to create new undo, make it as default by setting undo_tablespace parameter and then drop old undo tablespace.
if you are having fragmented tables, then you can shrink them using following commands
alter table <table_name> enable row movement;
alter table <table_name> shrink compact;
to see which tables are fragmented, use enterprise manager if your database version is 10g