下面选项中,可以将数据库 itcast 的编码修改为 gbk 的是
A.
ALTER DATABASE itcast CHARACTER SET gbk COLLATE gbk_bin;
B.
ALTER DATABASE itcast CHARACTER SET= gbk COLLATE gbk_bin;
C.
CREATE DATABASE itcast CHARACTER SET gbk COLLATE gbk_bin;
D.
ALTER DATABASE itcast CHARACTER SET=gbk COLLATE gbk_bin;