摘要:
sha1(); 40位sha(); 40位md5(); 32位password(); 41位case when then end 的用法select sname 姓名,sscore 成绩,case when sscore is null then '补考'when sscore>=90 then '优秀'when sscore>=... 阅读全文
posted @ 2015-05-04 00:19 小蕊同学 阅读(646) 评论(0) 推荐(0) 编辑
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