mysql 实现序号化数字中 缺失的数字

Posted 2022-12-04 IT的鱼

SELECT
	( SELECT IFNULL(max(CAST( commodity_number AS SIGNED )),0) + 1 FROM ( SELECT commodity_number FROM sys_commodity WHERE company_id = '950872849940217856' ) AS b   WHERE commodity_number < a.commodity_number ) AS sort
FROM
	( SELECT commodity_number FROM sys_commodity WHERE company_id = '950872849940217856' ) AS a 
WHERE
	a.commodity_number > ( SELECT IFNULL(max(CAST( commodity_number AS SIGNED )),0)+ 1 FROM ( SELECT commodity_number FROM sys_commodity WHERE company_id = '950872849940217856' ) AS b WHERE commodity_number < a.commodity_number ) 
ORDER BY
	commodity_number ASC;