我需要选择product_id的成本值,然后更新该product_id的最低值SELECT value AS cost from catalog_product_entity_decimal
where attribute_id = 79 andentity_id IN (select product_id from cata
我想要将数据插入到来自3个不同表的值的表中。这是我的声明 values ((class_ref, (select class.id as class_ref from class where class.name = 'pe')),
(teachers_refINSERT INTO class_teachers_section(clas