摘要: 1. ASCII返回与指定的字符对应的十进制数;SQL> select ascii(A) A,ascii(a) a,ascii(0) zero,ascii( ) space from dual;A A ZERO SPACE--------- --------- --------- -------... 阅读全文
posted @ 2010-09-02 11:57 PPDev 阅读(656) 评论(0) 推荐(0) 编辑