小编Fre*_*ate的帖子

所以这里的场景是,我在数据库中有4个表:

1. "question_info":
   CREATE TABLE question_info ( q_id mediumint(9) NOT NULL, q_type_id int(11) NOT NULL, q_options_id mediumint(9) NOT NULL, q_category_id int(11) NOT NULL, q_text varchar(2048) NOT NULL, status tinyint(4) NOT NULL DEFAULT '0', q_date_added date NOT NULL DEFAULT '2013-01-01', q_difficulty_level tinyint(4) NOT NULL DEFAULT '0', PRIMARY KEY(q_id) );
   

2. "question_options_info":
   CREATE TABLE question_options_info ( q_options_id mediumint(9) NOT NULL, q_options_1 varchar(255) NOT NULL, q_options_2 varchar(255) NOT NULL, q_options_3 varchar(255) NOT NULL, q_options_4 varchar(255) NOT NULL, q_options_ex_1 varchar(1024) DEFAULT NULL, q_options_ex_2 varchar(1024) DEFAULT NULL, …