Script: List all foreign keys in a database

SELECT

o1.name AS FK_table,

c1.name AS FK_column,

fk.name AS FK_name,

o2.name AS PK_table,

c2.name AS PK_column,

pk.name AS PK_name,

fk.delete_referential_action_desc AS Delete_Action,

fk.update_referential_action_desc AS Update_Action

FROM sys.objects o1

INNER JOIN sys.foreign_keys fk

ON o1.object_id = fk.parent_object_id

INNER JOIN sys.foreign_key_columns fkc

ON fk.object_id = fkc.constraint_object_id

INNER JOIN sys.columns c1

ON fkc.parent_object_id = c1.object_id

AND fkc.parent_column_id = c1.column_id

INNER JOIN sys.columns c2

ON fkc.referenced_object_id = c2.object_id

AND fkc.referenced_column_id = c2.column_id

INNER JOIN sys.objects o2

ON fk.referenced_object_id = o2.object_id

INNER JOIN sys.key_constraints pk

ON fk.referenced_object_id = pk.parent_object_id

AND fk.key_index_id = pk.unique_index_id

ORDER BY o1.name, o2.name, fkc.constraint_column_id