Полезные SQL скрипты: поиск foreign key по БД
SELECT
f.name AS ForeignKey,
OBJECT_NAME(f.parent_object_id) AS TableName,
COL_NAME(fc.parent_object_id, fc.parent_column_id) AS ColumnName,
OBJECT_NAME (f.referenced_object_id) AS ReferenceTableName,
COL_NAME(fc.referenced_object_id, fc.referenced_column_id) AS ReferenceColumnName
FROM
sys.foreign_keys AS f
INNER JOIN
sys.foreign_key_columns AS fc
ON
f.OBJECT_ID = fc.constraint_object_id
WHERE
f.name = 'FKnokgcq1rxh5Y7DLhgCqIZJ4KY'