The view referential_constraints contains all referential (foreign key) constraints in the current database that belong to a table owned by the current user.
Table 32-18. referential_constraints Columns
Name
Data Type
Description
constraint_catalog
sql_identifier
Name of the database containing the constraint (always the current database)
constraint_schema
sql_identifier
Name of the schema containing the constraint
constraint_name
sql_identifier
Name of the constraint
unique_constraint_catalog
sql_identifier
Name of the database that contains the unique or primary key constraint that the foreign key constraint references (always the current database)
unique_constraint_schema
sql_identifier
Name of the schema that contains the unique or primary key constraint that the foreign key constraint references
unique_constraint_name
sql_identifier
Name of the unique or primary key constraint that the foreign key constraint references
match_option
character_data
Match option of the foreign key constraint: FULL, PARTIAL, or NONE.
update_rule
character_data
Update rule of the foreign key constraint: CASCADE, SET NULL, SET DEFAULT, RESTRICT, or NO ACTION.
delete_rule
character_data
Delete rule of the foreign key constraint: CASCADE, SET NULL, SET DEFAULT, RESTRICT, or NO ACTION.
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