NVARCHAR2(size) Variable-length character string having maximum
length size characters or bytes, depending on the
choice of national character set. Maximum size is
determined by the number of bytes required to store
each character, with an upper limit of 4000 bytes.
You must specify size for NVARCHAR2.注意:“depending on the choice of national character set”
如果你在家中安装数据库时选择的字符集是双字节的,那么最大只能是nvarchar2(2000)
length size characters or bytes, depending on the
choice of national character set. Maximum size is
determined by the number of bytes required to store
each character, with an upper limit of 4000 bytes.
You must specify size for NVARCHAR2.注意:“depending on the choice of national character set”
如果你在家中安装数据库时选择的字符集是双字节的,那么最大只能是nvarchar2(2000)
你要和公司的字符集設定成相同哦。
否則就算IMP成功了,也會出現亂碼的問題