varchar & varchar2

[tansdot]

I found in Oracle datatypes documentation the following:
difference between varchar & varchar2 is
"a varchar2 is like varchar but 2 byte length followed by buffer"
I could absolutely understand nothing from it. Could you please put more light on it.

Thanks

[patnams]

Varchar2 is an improved verion of Varchar. I think in Varchar there is a 2 byte space allocated that stores the length of actual data stored in that field.

Why worry about it when there are no practical implications !