Hur man ställer in AUTO_INCREMENT från en annan tabell

Denna kod kommer att skapa proceduren för dig:

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,
  `columnOne` tinyint(1) NOT NULL,
  `columnTwo` int(12) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT = ', `ai_to_start`);

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

Sedan kan du anropa CALL tbl_wth_ai(2); skicka parametern inom parentes.

Till exempel:

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