Shulou(Shulou.com)06/01 Report--

Today I am writing a project with ssm, two tables: category and goodclass. Among them, the foreign key goodclass_id of the category table is the primary key of goodclass, which requires the id value of category to be deleted, and the corresponding value in the table corresponding to the foreign key should also be deleted.

The sql statement is:

DELETE goodclass FROM goodclass,category WHERE goodclass.id=category.goodclass_id AND category.id=# {value passed in in the background}

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