如何在Delete语句中使用Sum和Inner Join并向其中添加第三个表 [英] How to use Sum and Inner Join in a delete statement and add a third table to it

问题描述

此问题是对以下此处回答的问题的补充 如何在删除中使用Sum和Inner Join声明

This question is an addition to the following question answered here How to use Sum and Inner Join in a delete statement

我将需要在以下查询中添加以下where语句WHERE oc_order_status.order_status_id IN ('3','5','17','19','20','23','25','26','29'):

I will need to add the following where statement WHERE oc_order_status.order_status_id IN ('3','5','17','19','20','23','25','26','29') to the following query:

Delete t
    from TablenName t join
         (select op.product_id, sum(op.quantity) as quantity
          from oc_order_product op
          group by op.product_id
         ) op
         on op.product_id = t.product_id and op.quantity < 2;

所有表共享具有相同值的同一product_id列，并且所有表都位于同一数据库中.

All tables share the same product_id column with same values and all tables are in the same database.

推荐答案

您可以使用FK product_id生成产品和状态表的inner join，并在where子句中过滤出order_status_id.

You can do a inner join of product and status table using the FK product_id and filter out the order_status_id in the where clause.

Delete t
    from TablenName t join
         (select op.product_id, sum(op.quantity) as quantity
          from oc_order_product op
          inner join oc_order_status os on os.product_id =op.product_id
          where os.order_status_id IN (3,5,17,19,20,23,25,26,29)
          group by op.product_id
         ) op
         on op.product_id = t.product_id and op.quantity < 2;

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