table size

[Sophia Choi]

I have a question from Sybex, but I can't understand the answer.Pls help.
A table is created as follows:
create table t(col1 number) storage(initial 2m next 2m minextents 6 pctincrease 0);
when you issue the following statement,what will be the size of the table, if the high water mark of the table is 200kb?
Alter table t deallocate unused keep 1000k;

Answer is 12000kb
What is the formular ?
Thanks

[Mark Spritzler]

Without knowing what your alter table statement does. the original statement has each extent to be 2Mb, initial and each "next" extent. You have minimum of 6 extents. So 6 extents, times 2MB equals 12MB
Mark