专题文章
时长:00:00更新时间:2020-11-09 16:36:21
mysql-MySql查询的问题,关于库存量的查询操作:mysqlselect CREATE TABLE who_tmp_real_stock2 SELECT SUM( num ) AS real_stock,goods_id AS goods_id_new FROM who_goods_stock GROUP BY goods_id_new ALTER TABLE who_tmp_real_stock2 ADD UNIQUE (goods_id_new) SELECT a.goods_id as goods_id,c
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