RE: Truncate Qs

From: Christine Turner <Christine.Turner_at_IPS-Sendero.com>
Date: Tue, 20 Jun 2000 13:23:17 -0000
Message-Id: <10534.109909@fatcity.com>

Sounds like there is a foreign key enabled with a cascade delete to a child table. Which means, when you do a delete, it also takes care of the data in children tables and deletes it there too. Truncate will not take care of data in the children tables hence the error message. Either get rid of the constraint, or just do the delete.

take care,
Christine Turner
Database Administrator
IPS-Sendero
Scottsdale, Arizona
Phone: (800) 321-6899 ext. 3286
Fax: (480) 946-8224
E-mail: christine.turner_at_ips-sendero.com

-----Original Message-----

From:	Prabal Biswas [SMTP:willsm_at_hotmail.com]
Sent:	Tuesday, June 20, 2000 1:13 PM
To:	Multiple recipients of list ORACLE-L
Subject:	Truncate Qs

Hello,
Can someone please explain me this:
I tried to truncate a table, it gave ORA-2266. But when I deleted the rows, it did not show the error. And after deleting the rown I tried to truncate the table again, but it still gives ORA-2266

TIA
Prabal

SQL> truncate table supplier_order;
truncate table supplier_order

*

ERROR at line 1:
ORA-02266: unique/primary keys in table referenced by enabled foreign keys

SQL> delete supplier_order;

97 rows deleted.

SQL> truncate table supplier_order;
truncate table supplier_order

*

ERROR at line 1:
ORA-02266: unique/primary keys in table referenced by enabled foreign keys

---

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--
Author: Prabal Biswas
  INET: willsm_at_hotmail.com

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Received on Tue Jun 20 2000 - 08:23:17 CDT