hi venkatramany,
i used only triggers for assigning key values.what is the disadvantage over
that may i know in detail.
paul.j
-----Original Message-----
From: Rajagopal Venkataramany <rajagopalvr_at_excite.com>
To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
Date: Tuesday, August 01, 2000 10:09 PM
Subject: Re: Autoincrement functionality
>Hi,
>
> If you use a stored procedure interface to populate the table,
> then the stored procedure can be used to get the next value from
> the sequence and set the key field accordingly, before insert can
> take place. This would be an ideal and recommended way of doing it
> and possibly avoid creating the trigger if the trigger is created
> just for assigning key values.
>
> If you have a environment, where inserts to the table may happen
> viz sqlplus or sqlloader or by other similar means where the
> insert to the table cannot be interfaced via the stored procedure,
> then for such cases, triggers make sense.
>
>** I am trying to avoid triggers here if it is used just for deciding
> the key value. If the triggers have other functionality in it
> besides this, then go ahead with the trigger logic itself.
>
>Regards
>Rajagopal Venkataramany
>
>
>
>On Tue, 01 Aug 2000 10:56:14 -0800, ORACLE-L_at_fatcity.com wrote:
>
>> Hi All,
>> I am porting a schema to Oracle from mysql that uses
>> AUTOINCREMENT to produce the primary key.
>>
>> In order to keep the application code the same I have
>> to get a number from a sequence and insert into the primary key
>> column at the database level.
>>
>> The only way I have figured out is to use a before insert trigger
>> something like:
>>
>> WARNING: THIS IS UNTESTED PSUEDO CODE
>>
>> CREATE TRIGGER AUTOINCREMENT
>> BEFORE INSERT ON TABLE TEST
>> FOR EACH ROW
>> BEGIN
>> :new.PRIMARY_KEY_ROW = TEST_NUM.nextval;
>> END;
>>
>> Has anyone done this?
>> Any other ideas?
>>
>> I am in digest mode so I will not respond until tomorrow.
>>
>> TIA
>> Dave
>>
>> --
>> Dave Morgan
>> Senior Database Administrator
>> Internet Barter Inc.
>> www.bartertrust.com
>> 408-982-8774
>> --
>> Author: Dave Morgan
>> INET: dmorgan_at_bartertrust.com
>>
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>
>
>Regards
>Rajagopal Venkataramany
>
>
>
>
>
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>--
>Author: Rajagopal Venkataramany
> INET: rajagopalvr_at_excite.com
>
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Received on Wed Aug 02 2000 - 09:39:56 CDT
