将多个特殊字符替换为单个破折号

Question

您好，我的数据是 (SCARF.) / (WRAPS)，我想将其显示为 SCARF-WRAPS，但我无法获取它

我下面的代码是

DECLARE @str VARCHAR(400)
DECLARE @specialchars VARCHAR(50) = '%[/,~,@,#,$,%,&,*,(,),.,!^?:]%'
--SET @str = 'KRA!NTHI@#KUMAR, KU%^?MAR GO~()$U.BigGrin'
SET @str = '(SCARF.) / (WRAPS)'
SET @str = REPLACE(@str,'.','')
WHILE PATINDEX( @specialchars, @str ) > 0
SET @str = REPLACE(REPLACE( @str, SUBSTRING( @str, PATINDEX( @specialchars, @str ), 1 ),'-'),'-','-')

IF(LEFT(@str, 1) = '-')
   set @str = RIGHT(@str, LEN(@str) - 1)
IF(RIGHT(@str, 1) = '-')
   set @str = LEFT(@str, LEN(@str) - 1)

SELECT REPLACE(@str,' ','-')

但它提供的数据是 SCARF-----WRAPS 而不是 SCARF-WRAPS

我有多个数据类型，我想将它们转换为单个破折号。

例如：

'SKIN CARE & BEAUTY SUPPLY' should change to 'SKIN-CARE-BEAUTY-SUPPLY'

'BANDANAS / DURAGS / WRAPS' should change to 'BANDANAS-DURAGS-WRAPS'

'HATS & MUFFLERS' should change to 'HATS-MUFFLERS'

Answer 1

我不会说这个解决方案很漂亮；不是。它完成了工作，但我不希望它工作得很快。它利用了 Alan Burstein 的 NGrams8k，因此您需要确保您的服务器上也有一个副本。

如果您不明白，请随时提问（除了 NGrams8K 的工作原理之外，这就是本文的目的）：

CREATE TABLE T (string varchar(400));
INSERT INTO T
VALUES ('KRA!NTHI@#KUMAR, KU%^?MAR GO~()$U.BigGrin'),
       ('(SCARF.) / (WRAPS)');
GO
WITH Replacements AS (
    SELECT *,
           CASE WHEN NG.token NOT LIKE '[ /,~@#$%&*().!^?:]' THEN NG.token ELSE '-' END AS TokenR
    FROM T
         CROSS APPLY dbo.NGrams8k ('-'+T.String+'-',1) NG),
Repeating AS (
    SELECT *,
           CASE WHEN TokenR = '-' AND TokenR = LAG(TokenR) OVER (PARTITION BY string ORDER BY position) THEN NULL ELSE TokenR END AS TokenRR
    FROM Replacements),
Cleaned AS (
    SELECT string,
           STUFF((SELECT sq.TokenRR + ''
                  FROM Repeating sq
                  WHERE sq.TokenRR IS NOT NULL
                    AND sq.string = R.string
                  ORDER BY position
                  FOR XML PATH('')),1,1,'') AS CleanString
    FROM Repeating R
    GROUP BY string)
SELECT string, LEFT(CleanString, LEN(CleanString)-1) AS CleanedString
FROM Cleaned;

GO
DROP TABLE T;

使用提供的示例数据，您将获得以下输出：

string                                     | CleanedString
-------------------------------------------|---------------------------------
(SCARF.) / (WRAPS)                         | SCARF-WRAPS
KRA!NTHI@#KUMAR, KU%^?MAR GO~()$U.BigGrin  | KRA-NTHI-KUMAR-KU-MAR-GO-U-BigGrin

Answer 2

试试这个：

DECLARE @str VARCHAR(400)='(SCARF.) / (WRAPS)'
DECLARE @specialchars VARCHAR(50) = '%[/,~,@,#,$,%,&,*,(,),.,!^?:-]%'

WHILE PATINDEX( @specialchars, @str ) > 0
SET @str = REPLACE( @str, SUBSTRING( @str, PATINDEX( @specialchars, @str ), 1 ),' ')

SELECT REPLACE(REPLACE(REPLACE(RTRIM(LTRIM(@str)), ' ', '- '), ' -', ''), ' ', '')

将多个特殊字符替换为单个破折号

Replace multiple special character to single dash

sql-server

sql-server-2014