MySQL INSERT INTO 与 IF NOT EXIST 的双重条件

如果电子邮件地址在 list_email.email_addr 中不存在且在 list_no_email.email_addr 中不存在，我尝试插入新记录

INSERT INTO list_email(fname, lname, email_addr) VALUES('bob', 'schmoe', '[email protected]'), ('mary', 'lamb', '[email protected]');
SELECT email_addr FROM list_email
WHERE NOT EXIST(
SELECT email_addr FROM email_addr WHERE email_addr = $post_addr
) 
WHERE NOT IN (
SELECT email_addr FROM list_no_email WHERE email_addr = $post_addr
)LIMIT 1


**************************** mysql tables ******************************

mysql> desc list_email;
+------------+--------------+------+-----+---------+----------------+
| Field      | Type         | Null | Key | Default | Extra          |
+------------+--------------+------+-----+---------+----------------+
| id         | int(11)      | NO   | PRI | NULL    | auto_increment |
| list_name  | varchar(55)  | YES  |     | NULL    |                |
| fname      | char(50)     | YES  |     | NULL    |                |
| lname      | char(50)     | YES  |     | NULL    |                |
| email_addr | varchar(150) | YES  |     | NULL    |                |
+------------+--------------+------+-----+---------+----------------+

5 rows in set (0.00 sec)

mysql> desc list_no_email;
+------------+--------------+------+-----+-------------------+-----------------------------+
| Field      | Type         | Null | Key | Default           | Extra                       |
+------------+--------------+------+-----+-------------------+-----------------------------+
| id         | int(11)      | NO   | PRI | NULL              | auto_increment              |
| date_in    | timestamp    | NO   |     | CURRENT_TIMESTAMP | on update CURRENT_TIMESTAMP |
| email_addr | varchar(150) | YES  |     | NULL              |                             |
+------------+--------------+------+-----+-------------------+-----------------------------+
3 rows in set (0.00 sec)

*****************

尝试这样的事情：

 INSERT INTO list_email($username.$rowname, fname, lname, list_email) VALUES(?,?,?,?,?)
     SELECT email_addr FROM list_email AS tmp
     WHERE email_addr NOT IN(
         SELECT email_addr FROM list_email WHERE email_addr = $post_addr)
         WHERE email_addr NOT IN (SELECT email_addr FROM list_no_email 
                                  WHERE email_addr = $post_addr)
     LIMIT 1;