If a Column is a Foreign Key does it need an Index?
134456
Does specifying a foreign key make it an index?
58680
How do I force Postgres to use a particular index?
136937
When should a primary key be declared non-clustered?
97440
How to list table foreign keys
107391
SQL - many-to-many table primary key
147230
Should every table have a single-field surrogate/artificial primary key?
41165
Foreign key constraints failures
150019
Differences between "foreign key" and "constraint foreign key"
41922
MySQL SELECT LAST_INSERT_ID() for compound key. Is it possible?
155601
In SQL, is it OK for two tables to refer to each other?
60528
What's wrong with foreign keys?
18944
Entity framework finding foreign keys
155762
ON DELETE CASCADE not deleting entry for foreign key
24680
Conditional Foreign Key Relationship
113750
When should I use a unique constraint instead of a unique index?
55545
Find the Foreign Keys Associated with a Given Primary Key
73190
sql primary key and index