Basic question on the implementation of the Oracle trigger

For example, suppose I have this trigger code:
CREATE TRIGGER schema.trigger_name 
    BEFORE 
    DELETE OR INSERT OR UPDATE 
    ON schema.table_name 
       pl/sql_block
END trigger_name;
ALTER TRIGGER schema.trigger_name ENABLE;
commit;
The weird part is I wrote this trigger but don't know how to run it. Can someone give me the answer to these question, please?

1. How can I add this trigger on the table 'table_1 '.
2. I want the trigger to be permanent on the table_1 and not only for a particular session. How do I do that?
3. are there things I need to take care of during the execution of a trigger? Something like best practices?

I'm using Linux. So, please give your solution based on SQL more

EDIT: Also, how can I make sure that the trigger is. Is it possible to see?

Edited by: TuX4EvA January 6, 2010 03:24

1.
Replace

ON schema.table_name

by

on schema.table1

2 triggers in the table are always permanent and not for a given session.

To check this trigger is created in the database dictionary, you can use

 select owner, trigger_name from all_triggers;

For more information on triggers, please take a look at the Guide of the Oracle® Database 2 day Developer's:
http://download.Oracle.com/docs/CD/E11882_01/AppDev.112/e10766/tdddg_triggers.htm#BABIHIHH

Edited by: P. Forstmann on 6 Jan. 2010 12:28

Edited by: P. Forstmann on 6 Jan. 2010 12:31

Tags: Database

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    Hello

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    See you soon,.

    Suri

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    Kind regards

    Dave

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    918868 wrote:
    Friends, please excuse me for this easy question because I am very new to the Dataguard technology, what will be ideal start-up and sequences of stop primary and standby db provided is the version of DB Oracle 11 g R2 and we also have active dataguard broker.

    Any help will be much appreciated.

    Thanks in advance.

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    Published by: CKPT on February 22, 2013 15:18

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