Hi,
   I have few basic questions which are given below:
1.What is tablespace and what is it's utility?
2.What is datafile and what is it's utility?
3.What is user and what is it's utility?

Thanks in advance.
                   -Amitava Deewan

1. tablespace is a storage area, to keep records (datafiles).
2. files of data, store data information.
3. who will operate/work with the database. do data entries,
   do all work will related to database,


basic informations can be get by the book.