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JavaRanch » Java Forums » Databases » Object Relational Mapping
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Author

Select command problem

Punya Pratap Singh
Ranch Hand

Joined: Nov 23, 2010
Posts: 80
I have created ManyToMany mapping in hibernate. like below -





Test class -


It runs perfectly and creates Vehicle, UserDetails, UserDetails_Vehicle and Vehicle_UserDetails tables.
when I issue select command, all tables except UserDetails_Vehicle shows the table data.
But when I issue select command for UserDetails_Vehicle it says - "UserDetails_Vehicle" table data is not editable because there is no primary key..

Please help me understand why is this happening.
I am using MySql data base and issuing select command in query browser of it to see the table contents.

Thanks a lot.
 
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subject: Select command problem