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摘要: sql server中ISNULL与其它不为NULL的字段作字符串连接时,返回的是NULL 如 Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->SELECT NULL + 'abc' 返回结果 Code Code highlight... 阅读全文
posted @ 2009-01-16 16:58 .net's 阅读(412) 评论(0) 推荐(0)