leilao/ SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #41 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'bd_leilaoquent.b.id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by
SELECT a.*, b.*, c.* FROM tbl_course a, tbl_course_cron b, tbl_category c
WHERE a.course_id = b.course_id
AND a.category_id = c.category_id
AND a.course_rascunho = 0
AND a.course_encerrado = 0
AND a.course_auditado = 0
GROUP BY b.course_id