What is the advantages in using foreign keys and disadvantages in not using?
60528
What's wrong with foreign keys?
77984
Changing MySQL primary key when foreign key contraints exist
97440
How to list table foreign keys
41314
Is there a REAL performance difference between INT and VARCHAR primary keys?
26537
Possible to do a MySQL foreign key to one of two possible tables?
22025
Which is better for long term database scalability: adding columns or having key/value store
82726
Foreign Key (references) constraint on PostgreSQL Foreign Data Wrapper?
31975
dbDelta support for FOREIGN KEY
5515
Benefits of using backtick (`) in MySQL queries?
158985
Can a foreign key be NULL and/or duplicate?
131058
Decision between storing lookup table id's or pure data
134955
Foreign key issue:ERROR 1005 (HY000): Can't create table (errno: 150)
99717
Foreign key constraint on array member?
133288
Using Foreign Key and References for ON DELETE CASCADE in mysql
28430
Are composite primary keys bad practice?
119078
When would I use XML instead of SQL?
126514
Does anyone use Right Outer Joins?