foreign keys and normalization
46694
Foreign key referring to primary keys across multiple tables?
33461
Mapping ManyToMany with composite Primary key and Annotation:
155109
Foreign key constraint may cause cycles or multiple cascade paths?
64024
Strings as Primary Keys in SQL Database
66985
Is there a name for this database schema of key values?
77955
Foreign key not working in MySQL: Why can I INSERT a value that's not in the foreign column?
74726
How can I add a foreign key when creating a new table?
41165
Foreign key constraints failures
34609
How can I define a composite primary key in SQL?
31975
dbDelta support for FOREIGN KEY
54977
Many to Many and Weak Entities
72175
Foreign key relationship mapping with RestKit
127650
Selecting data from another table using a foreign key
47564
Foreign Key column mapped to multiple primary keys
24398
SqlServer: can one table's PK be the FK of two table's?
67785
Creating duplicate features based on many-to-one conversion of related table?
3344
What is Normalisation (or Normalization)?