在MySQL中更新逗号分隔列表

Question

I am trying to update a comma separated list in mysql. My query goes like:

UPDATE courses SET c_subscribers = c_subscribers,129 WHERE NOT FIND_IN_SET (1270, c_subscribers) AND c_id = 129

I am getting an MySql Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server

Which i cant figure out why? what am i doing wrong?

Answer 1

Try this....

UPDATE courses SET c_subscribers = CONCAT(c_subscribers,',129') WHERE NOT FIND_IN_SET (1270, c_subscribers) AND c_id = 129

using CONCAT function you can update the required value