I try to drop a tablespace with dependent objects but get below error

SQL> !oerr ora 02449 02449, 00000, "unique/primary keys in table referenced by foreign keys" // *Cause: An attempt was made to drop a table with unique or // primary keys referenced by foreign keys in another table. // *Action: Before performing the above operations the table, drop the // foreign key constraints in other tables. You can see what // constraints are referencing a table by issuing the following // command: // SELECT * FROM USER_CONSTRAINTS WHERE TABLE_NAME = "tabnam";
Solution:
include cascade constraints option to drop the dependent objects!
