I have a oracle Database running in the NT box, I have allocated
nearly about 3G for my application tablespace which is in perl and uses stored proce
dures, function, tables, indexes and temporary tables.
I estimated all the block segements of all tables and indexes and it is right now
occupying about 700 MB of block segments.
I need to estimate roughly how much space will be required for the data in the
database and that I have to recommend.
Before doing any calculation, I like to get some feedbacks on that.

My questions here, If i get 100 times of the presents data in the database,
what will be the size of blocks for the indexes. Is it gonna be 100 times of present
or any other things i need to consider for that estimation?
I got confused with the present block segement usage by few index files. Some are using 1/2 times of its original table, some are taking as same and some are taking 2 times.

What Other factors that I need to consider to estimate the future space requirements?

Any thoughts and information?
Thanks
SKM