sql server find all foreign keys that reference a column
SELECT OBJECT_NAME(f.parent_object_id) TableName, COL_NAME(fc.parent_object_id,fc.parent_column_id) ColName FROM sys.foreign_keys AS f INNER JOIN sys.foreign_key_columns AS fc ON f.OBJECT_ID = fc.constraint_object_id INNER JOIN sys.tables t ON t.OBJECT_ID = fc.referenced_object_id WHERE OBJECT_NAME (f.referenced_object_id) = 'YourTableName'