Oracle Error ORA-02266: unique/primary keys in table referenced by enabled foreign keys

Oracle Error Message

ORA-02266: unique/primary keys in table referenced by enabled foreign keys

Reason for the Error

An attempt was made to truncate a table with unique or primary keys referenced by foreign keys enabled in another table. Other operations not allowed are dropping/truncating a partition of a partitioned table or an ALTER TABLE EXCHANGE PARTITION.

Solution

Before performing the above operations the table, disable 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”;