摘要: --lower,upper :大小写转换select last_name,lower(last_name),upper(last_name) from employees; --initcap 单词首字母大写,其他全小写select initcap('this is a book') from du 阅读全文
posted @ 2016-08-28 00:43 叨客人 阅读(166) 评论(0) 推荐(0) 编辑