如何从ms sql中的字符串的开始和结束中删除特定字符串中的\n(字符(10))

Question

我有一栏供评论,我需要在一份报告中显示.这里发生了一些时间,用户使用多个进入评论框.我无法访问我只需要在SQL中管理这个东西的代码部分.

所以我删除了不需要的

1 /r/n 
2 /n/n

从使用

REPLACE(REPLACE(Desc, CHAR(13)+CHAR(10), CHAR(10)),CHAR(10)+CHAR(10), CHAR(10)) as Desc,

现在我想删除任何\r或\n从开始或结束,如果任何字符串

Answer 1

此处使用 TRIM 检查

示例：UPDATE tablename SET descriptions = TRIM(TRAILING "<br>" FROM descriptions) 如果您想替换换行符，请使用如下所示的内容

SELECT REPLACE(REPLACE(@str, CHAR(13), ''), CHAR(10), '')

或者

DECLARE @testString varchar(255)
set @testString = 'MY STRING      '

 /*Select the string and try to copy and paste into notepad and tab is still there*/
SELECT testString = @testString 

/*Ok, it seems easy, let's try to trim this. Huh, it doesn't work, the same result here.*/
SELECT testStringTrim = RTRIM(@testString) 

/*Let's try to get the size*/
SELECT LenOfTestString = LEN(@testString) 

/*This supposed to give us string together with blank space, but not for tab though*/
SELECT DataLengthOfString= DATALENGTH(@testString)

SELECT ASCIIOfTab = ASCII(' ')
SELECT CHAR(9) 

/*I always use this like a final solution*/
SET @testString = REPLACE(REPLACE(REPLACE(@testString, CHAR(9), ''), CHAR(10), ''), CHAR(13), '') SELECT @testString   

/*
CHAR(9)       - Tab
CHAR(10) - New Line
CHAR(13) - Carriage Return
*/

参考