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format code appears twice

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Oralce中的to_date()函数用于将字符串转换为日期对象,具体使用格式为: to_date( string, [ format_mask ] , [ nls_language ] ) string1 要转换的字符串. format_mask 可选项,日期转换格式. nls_language 可选项. 指定用于转换字符串的nls language. [问题] ORA-01810: format code appears twice 可能是像Java那样指定日期格式,比如: to_date('2006-06-01 18:00:00' 'yyyy-mm-dd hh:MM:ss') 而在Oracle中的日期格式是不区分大小写的,所以 mm 出现了两次。 正确的写法是: to_date('2006-06-01 18:00:00' 'yyyy-mm-dd hh:mi:ss')
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2 楼 fishbottle 2010-07-23  
Thanks!
1 楼 fanxch817 2010-05-31  
哎,,受教了。

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