摘要: TO_NUMBER(x [, format], [ nls_language ]) converts x to a NUMBER. x is the string that will be converted to a number. x是将要被转换成number的字符串。 format, opti 阅读全文
posted @ 2016-06-14 11:41 it蛰伏者 阅读(4749) 评论(0) 推荐(0)