Mysql正则匹配替代Like模糊查询

Like模糊查询：

SELECT 
  * 
FROM
  table
WHERE username NOT LIKE '%测试%' 
  AND username NOT LIKE '%ceshi%' 
  AND username NOT LIKE '%tester%'
;

正则匹配：

SELECT 
  * 
FROM
  table
WHERE username NOT REGEXP '测试|ceshi|tester'
;