sql server字符串截取实例分析

sql server字符串的截取 *** 可能很多人还不知道，接下来的SQL server内容就以一个例子来为您介绍sql server字符串截取的 *** ，供您参考，希望对您能有所启迪。

已知: 字段A='F:photowinter 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 *** :

+++++++++++++++++++++++++++++++++++++++++++++++++++

---截取sql server字符串A的之一个左边的字符串

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sql server字符串

select   reverse(left(reverse(A),charindex('/',reverse(A))-1))

输出结果：Winter Leaves.jpg

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

---截取字符串A的首字幕

select   STUFF(A,1, 1, '')

输出结果：:photoWinter Leaves.jpg

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++