Hi
Santosh,
VARCHAR and VARCHAR2 are pretty much the same, but Oracle has them both
to be compatible ANSI types.
The N
prefix indicates that you can store multibyte data in these fields (like
Unicode). The reason behind it is,
that
you can either have the whole database be Unicode based or you don't and then
you'll have to use the N
prefixed datatypes in order to have a Unicode / non-Unicode mix within
tables.
Regards,
Stefan
-----Ursprüngliche Nachricht-----
Von: Santosh Varma [mailto:[EMAIL PROTECTED]]
Gesendet: Freitag, 21. Juni 2002 08:23
An: Multiple recipients of list ORACLE-L
Betreff: Data Typesi wanted to know the exact difference between the following data types ->NCHARNVARCHAR2VARCHAR2VARCHARThanks and regards,
Santosh