INSERT INTO 使用其他表中的数据导致 ERROR 1064

Question

我的 INSERT INTO 命令是：

INSERT INTO environment_fid (FID_environment) VALUES SELECT ID FROM environment WHERE name='planes';

但我得到了：

ERROR 1064 (42000)：您的 SQL 语法有错误；检查与您的 MySQL 服务器版本相对应的手册，以在第 1 行的 'SELECT ID FROM environment WHERE name='planes'' 附近使用正确的语法

我有三张桌子，但我只尝试了两张：

CREATE TABLE `environment_fid` (
  `ID` mediumint(9) unsigned AUTO_INCREMENT,
  `FID_environment` mediumint(9) unsigned,
  `FID_monster` mediumint(9) unsigned ,
  PRIMARY KEY  (`ID`)
) ENGINE=MyISAM;

DROP TABLE IF EXISTS `environment`;
CREATE TABLE `environment` (
  `ID` mediumint(9) unsigned AUTO_INCREMENT,
  `name` text NOT NULL,
  PRIMARY KEY  (`ID`)
) ENGINE=MyISAM;

但是，当我放入零件时：

INSERT INTO environment_fid (FID_environment) VALUES (78);

查询正常，1 行受影响（0.00 秒）

和

 SELECT ID FROM environment WHERE name='planes';

*+----+
| ID |
+----+
| 66 |
+----+

1 row in set (0.00 sec)*

我不知道这个问题，有什么建议吗？

谢谢，

INSERT INTO environment_fid (FID_environment) SELECT ID FROM environment WHERE name='planes';

解决我的问题，但我怎样才能获得其他表？例如：

INSERT INTO environment_fid (FID_environment, FID_monster) 
SELECT ID FROM environment  WHERE name='planes',
SELECT ID FROM monster WHERE family='Blue';

Answer 1

删除 values 和 将您的查询更改为：

INSERT INTO environment_fid (FID_environment) 
SELECT ID FROM environment WHERE name='planes';

或

INSERT INTO environment_fid (FID_environment) VALUES (environment_id)

Answer 2

删除INSERT INTO 中的VALUES。你不能在INSERT INTO中混合VALUES和SELECT

所以你的工作查询将是：

INSERT INTO environment_fid (FID_environment) 
SELECT ID FROM environment WHERE name='planes';

INSERT INTO 语句的一些示例

INSERT INTO TableName (Col1, Col2, Col3) VALUES (@Val1, @Val2, @Val3)

或

INSERT INTO TableName (Col1, Col2, Col3) 
SELECT @Val1, @Val2, @Val3

Answer 3

我发现了我的最后一个问题：

INSERT INTO environment_fid (FID_environment, FID_monster) 
SELECT 
 (SELECT environment.ID FROM environment WHERE name='planes') AS FID_environment, 
 (SELECT ID FROM monster WHERE family='Blue') AS FID_monster;