MySQL – GROUP_CONCAT
SELECT type as result FROM tbl_users
Result:
admin
admin
user
admin
editor
SELECT GROUP_CONCAT(type) as result FROM tbl_users
Result:
admin,admin,user,admin,editor
https://database.guide/how-to-return-query-results-as-a-comma-separated-list-in-mysql/
MSSQL equivalent is STRING_AGG()