SQLSERVER字符串截取_sqlserver

已知: 字段A=’F:/photo/Winter Leaves.jpg’
要求:分段截取每段字符[字段A不能为TEXT类型,否则报错]
解决方法:
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

—截取字符串A的第一个/左边的字符串
select left(A,charindex(‘/’,A)-1)

输出结果：F:
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

—截取/中间的字符串
select left(stuff(A,1,charindex(‘/’,A),”),charindex(‘/’,stuff(A,1,charindex(‘/’,A),”))-1)
输出结果：photo
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

—截取最后一个/后面的字符串
select reverse(left(reverse(A),charindex(‘/’,reverse(A))-1))
输出结果：Winter Leaves.jpg
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

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