如果从数据库获取数据时记录不存在,则需要插入到sql中,我尝试这样做:
INSERT INTO database.wp_usermeta(user_id, meta_key, meta_value)
SELECT (user_id, 'ur_form_id' , 210)
FROM database.wp_usermeta ORDER BY user_id DESC LIMIT 1
WHERE NOT EXISTS (SELECT user_id, 'ur_form_id' , 210
FROM v.wp_usermeta ORDER BY user_id DESC LIMIT 1);
但不行,工作分支说“这个职位无效”
BIG阳
神不在的星期二