Dear All,

I would like to use the DBMS_SPACE package to return information about the position of the high water mark and the amount of unused space in a segment. However, I don't know how to execute the DBMS_SPACE package with sql*plus.
Could you pls help me out? Thank you!!

I am facing a problem as below, (login sys/**** as sysdba)
SQL> execute
DBMS_SPACE.UNUSED_SPACE
('SCOTT', 'EMP', 'TABLE', :total_blocks,
:total_bytes,:unused_blocks, :unused_bytes);
Error>
SP2-0552: Bind variable "UNUSED_BLOCKS" not declared.