Unique key with NULLs...

After importing tables from DB2 they do not show up on the relational model or anywhere in the desig...

Model N-M relationship with additional info of "main" row...

Unique kind of questionnaire - Database design...

why there isn't any pointer in relational model?...

How to translate a (0,N)(0,N)(0,N)ternary relationship in ER model in this situation?...

Translating Database Models to Models on Ruby On Rails...

How to design table with primary key and multivalued attribute?...

Does ER Diagram in MySQL Workbench a Relational model?...

Why are positional queries bad?...

Representing multiple candidate keys in RM...

Broken referential integrity: What would Edgar Codd say?...

What is Relational Integrity...

Relational data modeling for sub types...

Unsure if my ER Diagram to relational model is correct...

What's the difference between relational diagrams, ER diagrams and EER diagrams...

Meaningful tuple...

Laravel relational delete between three models...

Can a superkey include things that aren't part of the primary key?...

Relational design scenario: restrict children relations...

Solving ternary to create the database...

Relational database theory and keys...

How to generate Relational Model from UML Class Model?...

Does every table really need an auto-incrementing artificial primary key?...

Circular database relationships. Good, Bad, Exceptions?...

Procedurally transform subquery into join...