VARCHAR和VARCHAR2是一样的东西，都是可变长的（不会用空格填充的）Varchar不推荐使用，Oracle公司以后可能会用Varchar做其他用途，但Varchar2肯定不会，Oracle公司做过保证 它们两个的定义如下：VARCHARThe VARCHAR datatype stores character strings of varying length. The first two bytes contain the length of the character string, and the remaining bytes c...
