SQL query for a carriage return in a string and ultimately removing carriage return

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-上瘾入骨i
-上瘾入骨i 2020-12-04 17:37

SQL query for a carriage return in a string and ultimately removing carriage return

I have some data in a table and there are some carriage returns in places where I

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  •  失恋的感觉
    2020-12-04 18:19

    You can create a function:

    CREATE FUNCTION dbo.[Check_existance_of_carriage_return_line_feed]
    (
          @String VARCHAR(MAX)
    )
    RETURNS VARCHAR(MAX)
    BEGIN
    DECLARE @RETURN_BOOLEAN INT
    
    ;WITH N1 (n) AS (SELECT 1 UNION ALL SELECT 1),
    N2 (n) AS (SELECT 1 FROM N1 AS X, N1 AS Y),
    N3 (n) AS (SELECT 1 FROM N2 AS X, N2 AS Y),
    N4 (n) AS (SELECT ROW_NUMBER() OVER(ORDER BY X.n)
    FROM N3 AS X, N3 AS Y)
    
    SELECT @RETURN_BOOLEAN =COUNT(*)
    FROM N4 Nums
    WHERE Nums.n<=LEN(@String) AND ASCII(SUBSTRING(@String,Nums.n,1)) 
    IN (13,10)    
    
    RETURN (CASE WHEN @RETURN_BOOLEAN >0 THEN 'TRUE' ELSE 'FALSE' END)
    END
    GO
    

    Then you can simple run a query like this:

    SELECT column_name, dbo.[Check_existance_of_carriage_return_line_feed] (column_name)
    AS [Boolean]
    FROM [table_name]
    

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