近期有一个项目要上线，开发人员在测试生产数据库的用户是否满足需求时，遇到了ORA-02019错误。 SQL> select * 2 from (select m.brd_pgm_schd_id || d.brd_pgm_schd_seq as adv_id, 3 m.brd_bgn_dtm as ymd, 4 m.brd_cl_dtm as eymd, 5 (case 6 when m.use_yn = 'Y' then 7 1 8 ...