上传者: 38500047
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上传时间: 2021-11-18 09:32:12
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文件大小: 23KB
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文件类型: -
代码如下:eclare @str nvarchar(50);set @str=’462,464,2′;select @str as ‘字符串’select len(@str) as ‘字符长度’select charindex(‘,’,@str,1) as ‘第一个逗号的索引值’select LEFT(@str,charindex(‘,’,@str,1)-1) as ‘第一个值’select SUBSTRING(@str,charindex(‘,’,@str,1)+1,len(@str)) as ‘从第一逗号开始截取出后面的字符串’select LEFT(SUBSTRING(@str,char