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

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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 don't want them. I am trying to write a query to get all of the strings that contain carriage returns.

I tried this

select * from Parameters
where Name LIKE '%"\n" %'

Also

select * from Parameters
where Name LIKE '\r'

'

Both are valid SQL but are not returning what I am looking for. Do I need to use the Like command or a different command? How do I get the carriage return into the query?

The carriage return is not necessarily at the end of the line either (may be in the middle).

carriage-return sql-like char sql
10 Answers

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]
user_16587920

If you are considering creating a function, try this: DECLARE @schema sysname = 'dbo' , @tablename sysname = 'mvtEST' , @cmd NVarchar(2000) , @ColName sysname

    DECLARE @NewLine Table
    (ColumnName Varchar(100)
    ,Location Int
    ,ColumnValue Varchar(8000)
    )

    SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE  TABLE_SCHEMA = @schema AND TABLE_NAME =  @tablename AND DATA_TYPE LIKE '%CHAR%'

    DECLARE looper CURSOR FAST_FORWARD for
    SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = @schema AND TABLE_NAME =  @tablename AND DATA_TYPE LIKE '%CHAR%'
    OPEN looper
    FETCH NEXT FROM looper INTO @ColName

    WHILE @@fetch_status = 0
    BEGIN
    SELECT @cmd = 'select ''' +@ColName+    ''',  CHARINDEX(Char(10),  '+  @ColName +') , '+ @ColName + ' from '+@schema + '.'+@tablename +' where CHARINDEX(Char(10),  '+  @ColName +' ) > 0 or CHARINDEX(CHAR(13), '+@ColName +') > 0'
    PRINT @cmd
    INSERT @NewLine ( ColumnName, Location, ColumnValue )
    EXEC sp_executesql @cmd
    FETCH NEXT FROM looper INTO @ColName
    end
    CLOSE looper
    DEALLOCATE looper


    SELECT * FROM  @NewLine
user_77063810
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