mysql: How can I remove character at start or end of field

Question

I have field that contains a comma-separated list. Some old records have a comma at the beginning or end of the field. I need to remove these extra commas.

Example:<

Answer 1

@codingbiz, Thank you for the website link:

Quick examples:

SELECT TRIM(BOTH ',' FROM fieldname) from tablename

SELECT TRIM(LEADING ',' FROM fieldname) from tablename

SELECT TRIM(TRAILING ',' FROM fieldname) from tablename

Thanks!