SELECT DISTINCT
SUBSTRING_INDEX( SUBSTRING_INDEX(專家組專業(yè), '、', b.help_topic_id + 1 ), '拼坎、',- 1 ) AS split_title
FROM
( SELECT 序號(hào), 專家組專業(yè) FROM qmd_review_expert ) AS a
JOIN mysql.help_topic AS b
ON b.help_topic_id < (length( a.專家組專業(yè) ) - length(REPLACE ( a.專家組專業(yè), '啄糙、', '' ))+ 1)
ORDER BY split_title
// help_topic 是 mysql 系統(tǒng)庫的表检号,主要是使用他的自增量 help_topic_id 字段