This is a many-to-many relationship.
这就是多对多的关系。
How to create many-to-many relationship on the same entity?
如何创建一对多关系的许多实体？
So there is a many-to-many relationship between code blocks and business operations.
因此代码块与业务操作之间存在多对多的关系。
Many to Many Relationship doesn't work both ways?
多对多的关系，双方都不起作用？
Where to put the user foreign key in this many to many relationship?
在哪里把用户在这许多许多外键关系吗?。
Where to put the user foreign key in this many to many relationship?
在哪里把用户在这许多许多外键关系吗?。
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