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[Source] What do many-to-many, one-to-many, and many-to-one mean in nhibernate?

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Posted on 8/2/2016 3:59:15 PM | | |

Many-to-many For example, a user can have multiple roles, and a role can be used against multiple different users
Therefore, the relationship between the role and the user is a many-to-many relationship, and the third table is generally used to show the corresponding relationship between the two
One-to-many For example, a teacher can correspond to many students
many-to-one is the opposite of many-to-one  
one-to-one For example, citizens and ID cards correspond to each other

1-to-many example in hibernate (teacher-student)
Configuration files
# Teacher.hbm.xml
   
  




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