10:07:26 SQL> conn utcore/ossI
Connected.
10:07:44 SQL> truncate table mapevent;
truncate table mapevent
ERROR at line 1:
ORA-02266: unique/primary keys in table referenced by enabled foreign keys
10:09:53 SQL> !oerr ora 2266
)P002266, 00000, "unique/primary keys in table referenced by enabled foreign keys"
*Cause: 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
// partitioned table or an ALTER TABLE EXCHANGE PARTITION.
*Action: Before performing the above operations the table, disable the
// foreign key constraints in other tables. You can see what
a6S0// constraints are referencing a table by issuing the following
// SELECT * FROM USER_CONSTRAINTS WHERE TABLE_NAME = "tabnam";
10:07:48 SQL> alter table mapevent disable primary key cascade;
Table altered.
10:07:52 SQL> truncate table mapevent;
Table truncated.
10:07:57 SQL> alter table mapevent enable primary key;
Table altered.
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