SQL Server中删除一切从第二次出现到结束

Question

我有我的SQL Server表包含文本列，比方说，一个列有如下文字：

"this is a test that was made the year 2012 cause in the year 2013 we was down" 

我需要的是检查是否一年以上发生;如果是，该文本应更新为：

"this is a test that was made the year 2012 cause in the " 

所以我需要把一切都在第二occurence之前删除一切从最后一次出现到结束

任何帮助吗？

Answer 1

这是痛苦的，但你可以做到这一点：

select (case when col like '%year%year%' 
      then left(col, 
         charindex('year', col, charindex('year', col) + 4) - 1 
        ) 
      else col 
     end) as first_year_only