Re: How to know what is the exact space used by a partition of a table

Cristian Palma wrote:

> Hi, Iīm developing a query to know the exact amount of space that I can
> use to allocate data.
>
> I need to know what is the exact space used by a partition of a table.
> The user_segment table has a field called "bytes", but I think that
> this field represents the allocated space, not the really used.
>
> Also, is there a way to know the free space for a tablespace?
>
> I was looking for the tables dba_free_space, dba_segments,
> all_tab_partitions and user_segments, but I canīt really figure out how
> calculate the free space for a tablespace, or the used space for a
> partition.
>
> The idea is to know the space used for a partition, and based in this,
> estimate the space that will be used for a future load of data, and see
> if this amount of data will fit into the partition (and the tablespace)
>
> Thanks a lot for your help
>
>
> Cristian Palma
>

Try a look on dbms_space package in the sys schema

/Svend Jensen Received on Wed Jan 16 2002 - 11:49:56 CST