db-schema

Do 1 to 1 relations on db tables smell?

I have a table that has a bunch of fields. The fields can be broken into logical groups - like a job's project manager info. The groupings themselves aren't really entity candidates as they don't and shouldn't have their own PKs. For now, to group them, the fields have prefixes (PmFirstName for example) but I'm considering breaking the...

Youtube Table structures

Can anyone share me how does youtube stored video related information in there tables ? What would be the table structure and what would be the various columns in tables and the relations between them ? Thanks in advance ...

DB Schema of a Role Based Access Control

Hi, I'm currently developing a member administration for a local association here and I'm developing the database schema at the moment. I'd like to share it with you to improve it and give other an example of a Role Based Access Model (RBAC). I'd appreciate any constructive criticism especially about the relationships I used between the...