mysql – 如何从另一个表设置AUTO_INCREMENT

如何在另一个表上的CREATE TABLE或ALTER TABLE上设置AUTO_INCREMENT？

我发现了这个问题,但没有解决我的问题：
How to Reset an MySQL AutoIncrement using a MAX value from another table?

我也试过这个：

CREATE TABLE IF NOT EXISTS `table_name` (
  `id` mediumint(6) unsigned NOT NULL AUTO_INCREMENT,`columnOne` tinyint(1) NOT NULL,`columnTwo` int(12) NOT NULL,PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=(SELECT `AUTO_INCREMENT` FROM  `informatION_SCHEMA`.`TABLES` WHERE `TABLE_SCHEMA` = 'database_name' AND `TABLE_NAME` = 'another_table_name');

这个：

ALTER TABLE `table_name` AUTO_INCREMENT=(SELECT `AUTO_INCREMENT` FROM  `informatION_SCHEMA`.`TABLES` WHERE `TABLE_SCHEMA` = 'database_name' AND `TABLE_NAME` = 'another_table_name');

这个：

CREATE TABLE IF NOT EXISTS `table_name` (
  `id` mediumint(6) unsigned NOT NULL AUTO_INCREMENT,PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=(SELECT (MAX(`id`)+1) FROM `another_table_name`);

还有这个：

ALTER TABLE `table_name` AUTO_INCREMENT=(SELECT (MAX(`id`)+1) FROM `another_table_name`);

最佳答案

此代码将为您创建过程：

CREATE PROCEDURE `tbl_wth_ai`(IN `ai_to_start` INT)
BEGIN

SET @s=CONCAT('CREATE TABLE IF NOT EXISTS `table_name` (
  `id` mediumint(6) unsigned NOT NULL AUTO_INCREMENT,PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT = ',`ai_to_start`);

  PREPARE stmt FROM @s;
  EXECUTE stmt;
  DEALLOCATE PREPARE stmt;
END;

然后你可以打电话给CALL tbl_wth_ai(2);在括号内传递参数.

例如：

CALL tbl_wth_ai((SELECT id FROM `ttest` WHERE c1='b'));