Re: Trouble with CREATE TRIGGER and transition tables

Hi Luis,

As I wrote, it works if I write them as separate triggers, which isn't
required when writing one with a correlation, such as this:

CREATE OR REPLACE TRIGGER hrithdrtrg

AFTER INSERT OR DELETE OR UPDATE OF icls, iret ON ipithdr

REFERENCING OLD ROW AS old_item

NEW ROW AS new_item

FOR EACH ROW MODE DB2ROW

BEGIN

IF INSERTING THEN

SIGNAL SQLSTATE '75000' ('Insert trigger'); -- use new_item

ELSEIF DELETING THEN

SIGNAL SQLSTATE '75000' ('Delete trigger'); -- use old_item

ELSEIF UPDATING THEN

SIGNAL SQLSTATE '75000' ('Update trigger'); -- use new_item

END IF;

END;


I've opened a PMR with IBM and we'll see what they say.

Thanks for your help!


Yours truly,

Glenn Gundermann
Email: glenn.gundermann@xxxxxxxxx
Cell: (416) 317-3144


On 6 January 2015 at 14:10, Luis Rodriguez <luisro58@xxxxxxxxx> wrote:

I wonder...

OLD_TABLE is defined as available only with DELETE/UPDATE triggers. What
happens if you define one trigger containing OLD_TABLE as DELETE OR UPDATE
and another trigger (INSERT) with only the NEW_TABLE statement?

Regards,

Luis


Luis Rodriguez
IBM Certified Systems Expert — eServer i5 iSeries
--


On Tue, Jan 6, 2015 at 1:00 PM, Glenn Gundermann <
glenn.gundermann@xxxxxxxxx

wrote:

Hi Luis,

When specified as:

REFERENCING OLD AS oldtable
NEW AS newtable

it is implying:

REFERENCING OLD ROW AS oldtable
NEW ROW AS newtable

, which is used for defining a correlation.

I am trying to define transition tables.

What I have found through trial and error is that I can define an after
insert, update, or delete trigger using my syntax but not all three in

one,

which can be done using correlations. I wonder if this is a bug?

Example of code that completes successfully:

CREATE OR REPLACE TRIGGER hrithdrtrg_after_insert
AFTER INSERT ON ipithdr
REFERENCING NEW TABLE AS newtable
FOR EACH STATEMENT MODE DB2SQL
BEGIN
SIGNAL SQLSTATE '75000' ('Insert trigger');
END;


Yours truly,

Glenn Gundermann
Email: glenn.gundermann@xxxxxxxxx
Cell: (416) 317-3144


On 6 January 2015 at 11:17, Luis Rodriguez <luisro58@xxxxxxxxx> wrote:

Glenn,

There is a slight syntax error (I think) in your code. The right syntax
should be:

REFERENCING OLD AS oldtable
NEW AS newtable

Just drop the "TABLE" after OLD and/or NEW


HTH,

Luis

Luis Rodriguez
IBM Certified Systems Expert — eServer i5 iSeries
--


On Tue, Jan 6, 2015 at 11:21 AM, Glenn Gundermann <
glenn.gundermann@xxxxxxxxx> wrote:

Hi Jim,

I have the same manual but I don't see your point. What am I

missing?

Yours truly,

Glenn Gundermann
Email: glenn.gundermann@xxxxxxxxx
Cell: (416) 317-3144


On 5 January 2015 at 22:48, Jim It <jim_it@xxxxxxxxxxx> wrote:

Trying again.


The only options for Referencing in CREATE TRIGGER statement are

shown

below.

--+------------------------------------------------------------------+-->

|

.-------------------------------------------------. |

| V .-ROW-. .-AS-. (1)

| |

'-REFERENCING----+-OLD--+-----+--+----+--correlation-name--+-----+-'

| .-ROW-. .-AS-. |
+-NEW--+-----+--+----+--correlation-name--+
| .-AS-. |
+-+-OLD TABLE-+--+----+--table-identifier-+
| '-OLD_TABLE-' |
| .-AS-. |
'-+-NEW TABLE-+--+----+--table-identifier-'
'-NEW_TABLE-'

Jim