How to calculate table size given the structure.

Question

Today i was asked how to estimate the size of the table given th transactions,.
table has 90 column all varchar(10)
How to calculate the size of table which has no data.
Message was edited by:
Maran.E

Answer 1

hi,
SQL> create table test as select * from all_objects ;
Table created.
SQL> create table test1 as select * from all_objects where 1 = 2 ;
Table created.
sql>select segment_name,bytes/1024/1024 "size", blocks
from dba_segments
where segment_name in ('TEST','TEST1')
SEGMENT_NAME
      size     BLOCKS
TEST1
     .0625          8
TEST
         6        768regards
Taj