Change Case to Upper & Lower in SQL Query SELECT - sql

Question

I have a SQL Query to pull a customer name from database, create a customer folder with that name. In the query I am killing slashes and periods, and i am also changing any result containing MCDONALD to SIMPLY "MCDONALDS". So MCDONALDS #123 comes out as simply MCDONALDS. Here is my query.
SELECT
CASE WHEN CHARINDEX('MCDONALD', cust_name) = 0
THEN REPLACE(REPLACE([cust_name],'.',''),'--','-')
ELSE 'MCDONALDS'
END cust_name
FROM job,dbo.cust cust_name
WHERE job.cust_id_bill_to = cust_name.cust_code AND
job.job_id = '44321' AND
job.sub_job_id = '2'
So, results now are:
MCDONALDS,
BRISTOL-MYERS,
TRUMP-CASINO
Desired results is upper and lower case in every word.. like this:
Mcdonalds,
Bristol-Myers,
Trump-Casino
I know its easy but for me its how to have it work WITH the rest of my query, what I am trying just not working so far.

Answer 1

Check Nimit Dudani Answer Here
DELIMITER $$
DROP FUNCTION IF EXISTS `test`.`initcap`$$
CREATE FUNCTION `initcap`(x char(30)) RETURNS char(30) CHARSET utf8
BEGIN
SET #str='';
SET #l_str='';
WHILE x REGEXP ' ' DO
SELECT SUBSTRING_INDEX(x, ' ', 1) INTO #l_str;
SELECT SUBSTRING(x, LOCATE(' ', x)+1) INTO x;
SELECT CONCAT(#str, ' ', CONCAT(UPPER(SUBSTRING(#l_str,1,1)),LOWER(SUBSTRING(#l_str,2)))) INTO #str;
END WHILE;
RETURN LTRIM(CONCAT(#str, ' ', CONCAT(UPPER(SUBSTRING(x,1,1)),LOWER(SUBSTRING(x,2)))));
END$$
DELIMITER ;
Usage:
select initcap('This is test string');

Answer 2

For Sql Server you can use this
INITCAP User defined Function code
IF OBJECT_ID('dbo.InitCap') IS NOT NULL
DROP FUNCTION dbo.InitCap;
GO
CREATE FUNCTION dbo.InitCap (#inStr VARCHAR(8000))
RETURNS VARCHAR(8000)
AS
BEGIN
DECLARE #outStr VARCHAR(8000) = LOWER(#inStr),
#char CHAR(1),
#alphanum BIT = 0,
#len INT = LEN(#inStr),
#pos INT = 1;
-- Iterate through all characters in the input string
WHILE #pos <= #len BEGIN
-- Get the next character
SET #char = SUBSTRING(#inStr, #pos, 1);
-- If the position is first, or the previous characater is not alphanumeric
-- convert the current character to upper case
IF #pos = 1 OR #alphanum = 0
SET #outStr = STUFF(#outStr, #pos, 1, UPPER(#char));
SET #pos = #pos + 1;
-- Define if the current character is non-alphanumeric
IF ASCII(#char) <= 47 OR (ASCII(#char) BETWEEN 58 AND 64) OR
(ASCII(#char) BETWEEN 91 AND 96) OR (ASCII(#char) BETWEEN 123 AND 126)
SET #alphanum = 0;
ELSE
SET #alphanum = 1;
END
RETURN #outStr;
END
GO
Testing :
SELECT dbo.InitCap('new york');
Result: New York
For your query
SELECT
dbo.InitCap(CASE WHEN CHARINDEX('MCDONALD', cust_name) = 0
THEN REPLACE(REPLACE([cust_name],'.',''),'--','-')
THEN 'MCDONALDS'
END) cust_name
FROM job,dbo.cust cust_name
WHERE job.cust_id_bill_to = cust_name.cust_code AND
job.job_id = '44321' AND
job.sub_job_id = '2'