@sat80890 said: How to design own DataBase?
You need to pick up a book on database design and start learning. There are many articles on the web as well, like
this[
^] and
this[
^] and more.
@sat80890 said: Which Language is support and comfortable for this?
Pretty much all the languages. Pick the language you will fill comfortable with. You tag says C#, which in very good choice.
@sat80890 said: i need more security.
yeah, you need a lot of that. First learn how to design db then you will learn about the security aspect of it.
@sat80890 said: What is PGSQL?
Did you mean
this[
^]