表机构，统计name的数量
sql语句 mysql.help_topic id自增的临时表
select (substring_index(substring_index(a.name,\';\',b.help_topic_id+1),\';\',-1)) \'name\',COUNT(\'abc\') \'count\'
from test_group a
join mysql.help_topic b on b.help_topic_id < (length(a.name) - length(replace(a.name,\';\',\'\'))+1)
group by `name`
结果：
参考：https://blog.csdn.net/xcymorningsun/article/details/73436568