mysql - 我的 JOIN 表的错误消息。错误 1366

Question

大家晚上好，

抱歉，我是 SQL 新手。

我的数据库中有两个表。第一个表没问题，没有问题，但是当我将一条记录插入第二个表(这是第一个表的 JOIN)时，我收到以下错误:

SQL query: Edit Edit

INSERT INTO  `clihelp`.`commandExample` (

`commandExampleId` ,
`_code` ,
`_cliCommandId` ,
`example` ,
`created` ,
`updated`
)
VALUES (
'',  'WI',  '00010',  'The following command is the same command as the Get-Service -Name Schedule

gsv -n Schedule', 
CURRENT_TIMESTAMP , 
CURRENT_TIMESTAMP
)
MySQL said: Documentation

#1366 - Incorrect integer value: '' for column 'commandExampleId' at row 1

这是我的第一个表:

CREATE TABLE `cliCommand` (
  `cliCommandId` mediumint(5) unsigned zerofill NOT NULL AUTO_INCREMENT COMMENT 'Autoincrement for each code group',
  `code` varchar(255) NOT NULL COMMENT 'Command unique code shared with users to enable search using this code.',
  `os` varchar(255) DEFAULT NULL COMMENT 'Operating Systems this command works with',
  `tags` text COMMENT 'tags for the command',
  `title` text NOT NULL COMMENT 'command short description/title to be displayed in search result listing along with command code and os',
  `script` text COMMENT 'Help/Manual for the command or complete script',
  `created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  `updated` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`code`,`cliCommandId`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COMMENT='Keeps all cli commands with meta data & description'

这是我的第二张 table ，有一次我遇到了问题:

CREATE TABLE `commandExample` (
  `commandExampleId` int(11) NOT NULL AUTO_INCREMENT COMMENT 'Autoincrement key for internal purposes',
  `_code` varchar(255) NOT NULL,
  `_cliCommandId` int(11) DEFAULT NULL,
  `example` text COMMENT 'an example associated with this command, there could be multiple examples associated with a command, each as a new record in this table',
  `created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  `updated` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`commandExampleId`)
) ENGINE=MyISAM AUTO_INCREMENT=1 DEFAULT CHARSET=latin1 COMMENT='Keeps examples, if any, for a command to be displayed'

你知道如何解决这个问题吗？

提前非常感谢您的帮助。

Answer 1

cliCommandId 已定义为整数列，但您正尝试插入空字符串。这就是错误的根源。由于它是一个自动增量列，您可能希望 MySQL 来处理分配该值。在这种情况下，只需在 INSERT 语句中完全省略 cliCommandId 即可。然后 MySQL 会自动为您分配一个值。

INSERT INTO clihelp.commandExample (
    `_code`,
    `_cliCommandId`,
    `example`,
    `created`,
    `updated`
)
VALUES (
    'WI',
    '00010',
    'The following command is the same command as the Get-Service -Name Schedule gsv -n Schedule',
    CURRENT_TIMESTAMP,
    CURRENT_TIMESTAMP
)