truncate the ADDRESS table

Hi all

I'm unable to truncate the parent table, even I deleted data in the child table.

Truncate table ADDRESS

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

Thank you

Hello

Right; in versions prior to version 12.1, TRUNCATE TABLE will not work if it has enabled foreign key refers to this table, just like DROP TABLE will not work.  If all the rows in the child one or several tables made reference to refer to the parent table is not serious.  As Tsharma said, you must disable foreign key constraints before making the TRUNCATE TABLE, like this:

ALTER TABLE emp
Emp_address_fk DISABLE the CONSTRAINT;

Address of TRUNCATE TABLE;

ALTER TABLE emp
CONSTRAINT to ALLOW emp_address_fk;

Tags: Database

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