📅  最后修改于: 2022-03-11 15:05:07.249000             🧑  作者: Mango
Both VARCHAR & VARCHAR2 are Oracle
data types that are used to store character
strings of variable length.
As I remember Varchar2 can store double of
Varchar datatype. Varchar2 also release
the unused characters. It is like Varchar2.0 :)