提取第n個字向前

Question

我如何從第n個字向前在sql服務器中提取單詞？

例如。

|說明|
|這是一件很好的禮服|

起提取第4個字，會輸出「象樣的衣服」

Answer 1

with sentences as 
(
select 'short sentence' as sentence UNION ALL 
select 'This is a nice dress' as sentence UNION ALL 
select 'The quick brown fox jumped over the lazy dog' as sentence 
) 

SELECT 
SUBSTRING(sentence, 
CHARINDEX(' ', sentence,CHARINDEX(' ', sentence, CHARINDEX(' ', sentence)+1)+1), 
LEN(sentence)) AS WordFourOnwards 
FROM sentences 
WHERE patindex('[^ ]% [^ ]% [^ ]% [^ ]%',sentence) > 0 

Answer 2

如果你自己構建的方法，你會發現第三空間的字符串中的位置，然後採取從該位置正確的字符串。

編輯：CHARINDEX的組合（）和子串（）等