小编San*_*eep的帖子

我们可以使用以下简单示例重新创建一种情况。我有以下两个示例表：

CREATE TABLE contact_info
(
  id INT UNSIGNED AUTO_INCREMENT,
  priContactId INT,
  secContactId INT,
  blahBlah VARCHAR(32),

  PRIMARY KEY(id)  
);  

和

CREATE TABLE name_lookup
(
  id INT UNSIGNED AUTO_INCREMENT,
  contactID INT,
  contactName VARCHAR(32),

  PRIMARY KEY(id)  
);  

我按如下方式填充它们：

INSERT INTO contact_info(priContactId, secContactId, blahBlah) VALUES(1, 3, "Team A"), (4, 2, "Team B");
INSERT INTO name_lookup(contactID, contactName) VALUES(1, "John Doe"), (2, "Mary Smith"), (3, "Jose Garcia"), (4, "Larry Brown");

显然，表的内容如下：

+----+--------------+--------------+----------+
| id | priContactId | secContactId | blahBlah |
+----+--------------+--------------+----------+
|  1 |            1 …