Wrap text in SQL server using function - sql-server

Question

I googled a lot to wrap string with minimum defined length, but I am unable to get any solution.
I created my own function that can wrap text by given number of characters per line.
This post may help to others looking for same.

Answer 1

Function 1
Create FUNCTION [dbo].[fn_BraekTextInLines]
(
-- Add the parameters for the function here
#InString varchar(max),
#LineLength int
)
RETURNS nvarchar(max)
AS
BEGIN
if #LineLength <=0 or #LineLength> LEN(#InString)
return #InString
declare #tmp varchar(max)
declare #result varchar(max)
DECLARE #word varchar (max);
declare #addedInResult bit
DECLARE c CURSOR LOCAL STATIC READ_ONLY FORWARD_ONLY
FOR SELECT s FROM SplitMax(#InString,'');
OPEN c;
FETCH NEXT FROM c INTO #word;
--set #tmp =#word
WHILE ##FETCH_STATUS = 0
BEGIN
if LEN(#tmp + ' ' + #word) < #LineLength
begin
set #tmp = #tmp + ' ' + #word
set #addedInResult = 0
end
else
begin
set #result = isnull(#result, ' ') + CHAR(13) + RTRIM(LTRIM( #tmp))
set #tmp = #word
set #addedInResult = 1
end
FETCH NEXT FROM c INTO #word;
if ##FETCH_STATUS <> 0
begin
set #result = isnull(#result, ' ') + CHAR(13) + RTRIM(LTRIM( #tmp))
set #addedInResult = 1
end
END
CLOSE c;
DEALLOCATE c;
if #addedInResult=0
begin
set #result = isnull(#result, ' ') + CHAR(13) + RTRIM(LTRIM( #tmp))
end
return #result
END
Function 2
Create FUNCTION [dbo].[fn_WrapString]
(
-- Add the parameters for the function here
#InString varchar(max),
#LineLength int
)
RETURNS nvarchar(max)
AS
BEGIN
declare #result varchar(max)
declare #tmp varchar(max)
DECLARE #Line varchar (max);
DECLARE c CURSOR LOCAL STATIC READ_ONLY FORWARD_ONLY
FOR SELECT s FROM SplitMax(#InString,CHAR(13));
OPEN c;
FETCH NEXT FROM c INTO #Line;
WHILE ##FETCH_STATUS = 0
BEGIN
set #tmp = dbo.fn_BraekTextInLines(#Line,#LineLength)
set #result = isnull(#result,' ') + #tmp
FETCH NEXT FROM c INTO #Line;
END
CLOSE c;
DEALLOCATE c;
return Rtrim(Ltrim(#result))
END
Function 3
ALTER FUNCTION [dbo].[SplitMax](#String VARCHAR(max), #Delimiter CHAR(1))
RETURNS #temptable TABLE (s VARCHAR(max))
AS
BEGIN
DECLARE #idx INT
DECLARE #slice VARCHAR(max)
SELECT #idx = 1
IF len(#String)<1 OR #String IS NULL RETURN
while #idx!= 0
BEGIN
SET #idx = charindex(#Delimiter,#String)
IF #idx!=0
SET #slice = LEFT(#String,#idx - 1)
ELSE
SET #slice = #String
IF(len(#slice)>0)
INSERT INTO #temptable(s) VALUES(#slice)
SET #String = RIGHT(#String,len(#String) - #idx)
IF len(#String) = 0 break
END
RETURN
END
Calling Function fn_WrapString to wrap the text
declare #name varchar(max)
set #name = 'Ine was King of Wessex from 688 to 726. He was'+ CHAR(13) +'unable to retain the territorial gains of his predecessor, Cædwalla, who had brought much of southern England under his'
print dbo.fn_WrapString(#name,60)
Output :
Ine was King of Wessex from 688 to 726. He was
unable to retain the territorial gains of his predecessor,
Cædwalla, who had brought much of southern England under
his

Answer 2

I also created a short version for warping the text in T-Sql
CREATE FUNCTION [dbo].[WrapText]
(
#List NVARCHAR(MAX),
#length INT
)
RETURNS NVARCHAR(MAX)
AS
BEGIN
DECLARE #result AS NVARCHAR(MAX);
SELECT #result = CASE
WHEN #result IS NULL THEN
SUBSTRING(#List, number.Number - #length + 1, #length)
ELSE
#result + CHAR(13) + CHAR(10) + SUBSTRING(#List, number.Number - #length + 1, #length)
END
FROM
(
SELECT Number = ROW_NUMBER() OVER (ORDER BY name)
FROM sys.all_objects
) number
WHERE number.Number <= LEN(#List) + #length - 1
AND number.Number % #length = 0;
RETURN #result;
END;
Calling Function:
SELECT dbo.WrapText('abcdefghijklmnopqrstuvwxyz',5)
If you are coping the result from grid, it will not past with line breaks as explained here
https://stackoverflow.com/a/59189881/1606054