从文本字段中提取字符串SQL Server 2012

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我有一个名为description的文本字段，列出了很多信息，并且我想提取特定单词之间的字符串。文字值样本：从文本字段中提取字符串SQL Server 2012

一般优点：这样做的目的是解释使用我们产品的好处。

健康因素：请查看我们的网站获取完整列表。

评论：在这里输入用户添加的任何评论。

联系我们：请致电XXX-XXX-XXXX

一般福利，健康因素，评论，并联系我们将永远在文本字段，但每一个后面的语句是不同的。输出应该提取这四个字符串之间的字符串：

来源

2016-03-10 user2536008

这篇文章是否帮助回答您的问题？ http://stackoverflow.com/questions/2647/how-do-i-split-a-string-so-i-can-access-item-x – Daniel

谢谢丹尼尔。我试过了，但它没有将字符串拆分到我想要的位置。 – user2536008

我不清楚它。是这样的：你有一个领域包括所有文本，并且你想把它分成上面表格中的4个领域？请澄清，原来的领域究竟是什么。 – FLICKER

这似乎是做你以后 - 希望它的使用。我确信有更好的方法来做到这一点:)

为了完整性我在一个临时表中创建了一个两行的测试用例，因为我认为你有很多行需要处理。

CREATE TABLE #Test (Txt NVARCHAR(MAX)) 

INSERT INTO #Test (Txt) VALUES 
(N'General Benefits: The purpose of this is to explain the benefits from using our products. Health Factors: Please check out our website for a complete list. Comments: Any comment added by the user is entered here. Contact Us: Please call us at xxx-xxx-xxxx'), 
(N'General Benefits: Some other benefits. Health Factors: Some other factors. Comments: Love your work. Contact Us: Call us zzz-zzz-zzzz'); 


DECLARE @PAT1 NVARCHAR(MAX) = N'General Benefits:'; 
DECLARE @PAT2 NVARCHAR(MAX) = N'Health Factors:'; 
DECLARE @PAT3 NVARCHAR(MAX) = N'Comments:'; 
DECLARE @PAT4 NVARCHAR(MAX) = N'Contact Us:'; 



SELECT 
    SUBSTRING(Txt, A + LEN(@PAT1) + 1, B - A - LEN(@PAT1) - 1) 'General Benefits', 
    SUBSTRING(Txt, B + LEN(@PAT2) + 1, C - B - LEN(@PAT2) - 1) 'Health Factors', 
    SUBSTRING(Txt, C + LEN(@PAT3) + 1 , D - C - LEN(@PAT3) - 1) 'Comments', 
    SUBSTRING(Txt, D + LEN(@PAT4) + 1 , LEN(Txt) - LEN(@PAT4) - 1) 'Contact Us' 
FROM #Test 
CROSS APPLY (SELECT 
    A = PATINDEX('%'[email protected]+'%', Txt), 
    B = PATINDEX('%'[email protected]+'%',Txt), 
    C = PATINDEX('%'[email protected]+'%',Txt), 
    D = PATINDEX('%'[email protected]+'%',Txt) 
) Q 


General Benefits                                                             Health Factors                                                             Comments                                                               Contact Us 
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 
The purpose of this is to explain the benefits from using our products.                                               Please check out our website for a complete list.                                                    Any comment added by the user is entered here.                                                     Please call us at xxx-xxx-xxxx 
Some other benefits.                                                            Some other factors.                                                            Love your work.                                                             Call us zzz-zzz-zzzz 

(2 row(s) affected)

来源

2016-03-14 06:49:09

非常感谢！它效果很好。 – user2536008

从文本字段中提取字符串SQL Server 2012

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