Related to string manipulation - sql

Question

I have a table of crop which contain a column with crop name For Example Fruit and Nuts, Vegetables and Melons. I have to use T-SQL and remove the 'and' insert the spaces with a underscore and a text crop.groups should be added in front. For example Fruit and Nuts will become crop.groups.fruit_nuts. I have to to do these for all the crops together in SQL. When we run the query a separate column with these transformation should be generated. Also I have to create a function doing all this to me.
My Function:
CREATE function dbo.translationkey_v10
(
#column_name nchar(15)
)
returns nvarchar(1000)
as
begin
DECLARE #numletters int;
DECLARE #counter int;
DECLARE #str nvarchar(6);
DECLARE #newcolumn_name nvarchar(50)
SET #numletters = LEN(#column_name);
SET #counter = 1;
SET #newcolumn_name = '';
WHILE #counter <= #numletters
BEGIN
-- a. read next character:
----------------------------------------------------------------
SET #str = LOWER(SUBSTRING(#column_name, #counter, 1));
-- b. search for and in the string 'and':
----------------------------------------------------------------
IF (#str LIKE '%and%')
BEGIN
SET #str = REPLACE(#str,' and','')
END
-- c. check for space:
----------------------------------------------------------------
IF UNICODE(#str) = 32
BEGIN
SET #str = '_';
END
SET #newcolumn_name = #newcolumn_name + #str;
SET #counter = #counter + 1;
END
RETURN CONCAT('crop.groups.',#newcolumn_name)
END
Sample data
Crop name : Beverages and spice crops
Translation output : crop.group.beverages_spice_crops

Answer 1

This would seem very simple using replace:
select cropname, Concat('crop.groups.', Replace(cropname, ' and ','_'))
from crop