2015年2月14日
网站的robots.txt
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posted @ 2015-02-14 23:18 k22009 阅读(119) 评论(0) 推荐(0)
oracle dual表
摘要： DUAL is a table automatically created by Oracle Database along with the datadictionary. DUAL is in the schema of the user SYS but is accessible by t... 阅读全文
posted @ 2015-02-14 09:29 k22009 阅读(218) 评论(0) 推荐(0)