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https://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:5773459616034
Regarding On Update Cascade; Breadcrumb. ... a discussion today with our developers regarding using Surrogate keys as primary key and one the major reason was to support Cascade Update. They asked why Oracle doesn't support this? Why does it support Cascade Delete but not update? ... why does the 10g NATURAL JOIN clause join over columns of the ...
https://www.experts-exchange.com/questions/21779768/oracle-10g-sql-plus-support-UPDATE-CASCADE.html
No, Oracle 10g does not support an UPDATE CASCADE. It is still Limited to ON DELETE CASCADE and ON DELETE SET NULL. To simulate an UDPATE CASCADE, set the constraint to INITIALLY DEFERRED and build a trigger to perform the updates.
https://community.oracle.com/thread/1044758
Mar 12, 2010 · help wanted on update cascade. How can i do it in oracle? SQL> create table t( 2 id number(1), 3 name varchar2(10), 4 constraint i_pk primary key (id) 5 ); Table created.
https://www.examveda.com/oracle-does-not-support-a-cascade-update-constraint-24278/
Oracle does NOT support a CASCADE UPDATE constraint . Home / Database / Managing Databases With Oracle / Question. Examveda . Oracle does NOT support a CASCADE UPDATE constraint. A. True. B. False. Answer: Option A . Join The Discussion. Comment * Related Questions on Managing Databases with Oracle.
http://www.dbasupport.com/forums/showthread.php?15020-Why-Oracle-doesn-t-support-cascade-update
Aug 28, 2001 · Hi all. MS SQL Server 2000 supports cascade update . Why oracle doesn't support it? is there theoritical problem with oracle table structures? I know it can do with triggers but it is hard in many relation database and it is better that exists ON UPDATE CASCADE like ON DELETE CASCADE in CREATE TABLE ,ALTER TABLE .
https://oraclespin.com/2010/11/27/how-does-cascade-work-in-cases-of-deleteupdate-for-foreign-key/
Nov 27, 2010 · How does cascade work in cases of delete/update for foreign key? ... — Shows when UPDATE primary key oracle will allow the UPDATE to occur on the parent table and then one can UPDATE the foreign key SQL> update supplier set supplier_id = 2 where supplier_id = 1; 1 row updated.
https://docs.oracle.com/cd/E17952_01/mysql-5.1-en/create-table-foreign-keys.html
InnoDB does not currently support foreign keys for tables with user-defined partitioning. This includes both parent and child tables. ... do not define several ON UPDATE CASCADE clauses that act on the same column in the parent table or in the child table. ... In MySQL, foreign key constraints are checked immediately, so NO ACTION is the same ...
https://www.quora.com/What-is-the-meaning-of-cascade-in-Oracle
Sep 30, 2017 · In addition to the above excellent answer about DML operations using the Cascade statement, there’s also Cascade options when you perform DDL. 1. When you drop a table; Drop table XXX Cascade constraints; this operation will drop tables even if th...
https://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:9529657900346597175
B has the option Cascade delete whenever a delete occurs on A. There is a trigger on table B which executes if a delete/update/insert is done directly on the table. But the trigger does …
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