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