MySQL:LAST_INSERT_ID() 返回 0

2021-11-20 00:00:00 sql database mysql

我有这个测试表:

CREATE TABLE IF NOT EXISTS `test` (
    `id` INT(10) AUTO_INCREMENT,
    PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4;

使用这三个中的任何一个插入

inserting using either of these three

INSERT INTO `test` (`id`) VALUES (NULL); INSERT INTO `test` (`id`) VALUES (0); INSERT INTO `test` () VALUES ();

和发行

SELECT LAST_INSERT_ID();

但查询结果总是0.

PHP 的 mysql_insert_id 和 PDO::lastInsertId() 也没有结果.

PHP's mysql_insert_id and PDO::lastInsertId() yield no result either.

我一整天都在玩弄这件事，但无法让它发挥作用.想法?

I've been toying with this whole day and can't get it to work. Ideas?

推荐答案

问题似乎出在 MySQL 的 phpmyadmin 配置文件 PersistentConnections 设置为 FALSE 这导致了一个新的CONNECTION_ID 每次发出查询时 - 因此使 SELECT LAST_INSERT_ID() 无效.

The problem seemed to be in MySQL's phpmyadmin config file PersistentConnections set to FALSE which resulted in a new CONNECTION_ID every time a query was issued - therefore rendering SELECT LAST_INSERT_ID() ineffective.

后续主题中的更多信息每个查询都会创建一个新的 CONNECTION_ID()

同时感谢dnagirl的帮助

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