Query to find the size the table occupies

I have a table with blob columns. How to find the size the table occupying? Thanks

DBMS_SPACE.SPACE_USAGE(
segment_owner IN varchar2,
segment_name IN varchar2,
segment_type IN varchar2,
unformatted_blocks OUT number,
unformatted_bytes OUT number,
fs1_blocks OUT number,
fs1_bytes OUT number,
fs2_blocks OUT number,
fs2_bytes OUT number,
fs3_blocks OUT number,
fs3_bytes OUT number,
fs4_blocks OUT number,
fs4_bytes OUT number,
full_blocks OUT number,
full_bytes OUT number,
partition_name IN varchar2 DEFAULT NULL);
Parameters
Parameter Description
segment_owner Schema name of the segment to be analyzed
segment_name Name of the segment to be analyzed
partition_name Partition name of the segment to be analyzed
segment_type Type of the segment to be analyzed (TABLE, INDEX, or CLUSTER)
OUTPUT ARGUMENTS
unformatted_blocks Total number of blocks that are unformatted
unformatted bytes Total number of bytes that are unformatted
fs1_blocks Number of blocks that has at least 0 to 25% free space
fs1_bytes Number of bytes that has at least 0 to 25% free space
fs2_blocks Number of blocks that has at least 25 to 50% free space
fs2_bytes Number of bytes that has at least 25 to 50% free space
fs3_blocks Number of blocks that has at least 50 to 75% free space
fs3_bytes Number of bytes that has at least 50 to 75% free space
fs4_blocks Number of blocks that has at least 75 to 100% free space
fs4_bytes Number of bytes that has at least 75 to 100% free space
ful1_blocks Total number of blocks that are full in the segment
full_bytes Total number of bytes that are full in the segment
Summary of DBMS_SPACE Subprograms
Example
variable unf number;
variable unfb number;
variable fs1 number;
variable fs1b number;
variable fs2 number;
variable fs2b number;
variable fs3 number;
variable fs3b number;
variable fs4 number;
variable fs4b number;
variable full number;
variable fullb number;
begin
dbms_space.space_usage('U1','T', 'TABLE',
:unf, :unfb,
:fs1, :fs1b,
:fs2, :fs2b,
:fs3, :fs3b,
:fs4, :fs4b,
:full, :fullb);
end;
print unf ;
print unfb ;
print fs4 ;
print fs4b;
print fs3 ;
print fs3b;
print fs2 ;
print fs2b;
print fs1 ;
print fs1b;
print full;
print fullb;
all the best
DN

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Dou you know read?
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This delivers possibly wrong data in MCOD installations.
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For every expert, there is an equal and opposite expert. - Becker's Law
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