How can you create a simple insert or update trigger
I am trying to create a simple insert or update trigger to timestamp an xml document when I load it into my XML DB repository but I always get an error trying to compile the trigger.
"ORA-25003: cannot change NEW values for this column type in trigger"
Here is my PL/SQL:
CREATE OR REPLACE TRIGGER "PLCSYSADM"."PLCSYSLOG_TIMESTAMP"
BEFORE
INSERT
OR UPDATE ON "PLCSYSADM"."PLCSYSLOG"
FOR EACH ROW BEGIN
:new.sys_nc_rowinfo$ := xmltype('<datestamp>' || SYSDATE || '</datestamp>');
END;
Does anyone have an example that works ?
Thanks in advance
Niels Montanana