sql - I had errors in MariaDB Event Scheduler - 


delimiter |  create event queue_sorting     on schedule every 1 seconds         begin         declare ts, pn int;  select  table_size_id ts      tables      table_size_id =        ( select  table_size_id              queue             order  q_time desc             limit  1       )       ,  phone_number null     order  table_line asc, table_number asc     limit  1;   select phone_number pn queue order q_time desc limit 1;  update tables set phone_number=pn table_size_id=ts;   delete queue phone_number=pn , table_size_id=ts;  end |  delimiter ;

i love create event manage queue, code errors. don't know why. have been searching on websites, haven't found best solution. should do? can explain?

what if latest table_size_id's had phone_number? event cannot move past find useful.

table_size_id -- normalizing sizes? (i hope not.)

please provide show create table.


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