playframework « MySQL « JPA Q&A

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1. JPA: Store fileAttachment into the database    stackoverflow.com

I would like to know if there is any way I can store a fileAttachment directly into the database with JPA. I have an attribute: 

public fileAttachement logo;
I have tried to change it ...

2. Play! Framework - Using MySQL and MongoDB for same application    stackoverflow.com

Is it possible to user MySQL Database and MongoDb database for same project using Play! framework? for example: I want 

@Entity Person to interact with my MySQL database ...

3. Problem with update id    stackoverflow.com

I'm gonna try to explain my problem as well I can I have some user groups to manage user rights. Some users may be customers. There's a OneToOne connection between the user ...