I need help on creating a trigger on my table1
that will insert specific columns into table2 from table1.
How can i do that? I am using Oracle 11G XE .
Here is my code:
create trigger AllowanceTrigger
on ex_bulacan
after insert
as
insert into allowance VALUES (PLANT_ORIGIN,SO_NO, SO_STATUS,SO_REMARKS,DRIVER_NAME)
select plant_origin, sales_order_no, status,remarks, driver_name
from ex_bulacan;
go ;
When I run that command I get this error
ORA-04071: missing BEFORE, AFTER or INSTEAD OF keyword
The explanation is:
ORA-04071. 00000 - "missing BEFORE, AFTER or INSTEAD OF keyword"
*Cause: The trigger statement is missing the BEFORE/AFTER/INSTEAD OF clause.
*Action: Specify either BEFORE, AFTER or INSTEAD OF.
There is no "go" statement in PL/SQL, and you have not followed the correct syntax for a trigger definition (it is well documented)
Try this:
create trigger AllowanceTrigger
after insert on ex_bulacan
begin
insert into allowance (PLANT_ORIGIN,SO_NO, SO_STATUS,SO_REMARKS,DRIVER_NAME)
select plant_origin, sales_order_no, status,remarks, driver_name
from ex_bulacan;
end;
I'm not sure whether it does what you intended. It fires once per insert statement, not for each row, and it inserts all rows from ex_bulacan into allowance, not just the ones you just inserted. Maybe what you want is actually:
create trigger AllowanceTrigger
after insert on ex_bulacan
for each row
begin
insert into allowance (PLANT_ORIGIN,SO_NO, SO_STATUS,SO_REMARKS,DRIVER_NAME)
values (:new.plant_origin, :new.sales_order_no, :new.status, :new.remarks,
:new.driver_name);
end;
There is a syntax error in your code. You must specify the trigger in this order:
CREATE TRIGGER AllowanceTrigger
AFTER INSERT
ON ex_bulacan
Related
I'm taking my first steps in Pl/SQL and am struggling with triggers. I've tried creating the trigger below but am receiving this error:
Error at line 2: PL/SQL: SQL Statement ignored
PL/SQL: ORA-00942: table or view does not exist
To clarify: I have checked the name of the table over and over, and it does exist. It is also in the same schema as the trigger I'm trying to create. The 'customer_seq.NEXTVAL' refers to a sequence created previously that runs without errors.
The code is as follows:
CREATE TRIGGER new_customer
BEFORE INSERT ON customer
FOR EACH ROW
BEGIN
INSERT INTO customer_id VALUES ('c-', customer_seq.NEXTVAL);
END;
Thanks in advance for any help.
You probably intend something like this:
CREATE TRIGGER new_customer
BEFORE INSERT ON customer
FOR EACH ROW
BEGIN
SELECT customer_seq.NEXTVAL INTO :NEW.customer_id
FROM dual;
END;
It is unclear what the purpose of 'C_' is. If it is part of the customer id, I would advise you to stick to numbers.
Also note that more recent versions of Oracle support generated always as identity -- which is much preferred over defining a sequence and trigger.
I am new to PLSQL in Oracle. When I am learning about triggers, I have read from this source https://www.techonthenet.com/oracle/triggers/before_insert.php which says that when I create a BEFORE INSERT Trigger in Oracle, the FOR EACH ROW is NOT always needed, hence the syntax is enclosed by square brackets [ ]. I have written this simple trigger:
CREATE OR REPLACE TRIGGER enroll_time
BEFORE INSERT
ON ENROLL
FOR EACH ROW
BEGIN
:new.addtime := sysdate;
END;
/
If I remove the FOR EACH ROW in the above, I actually get an error:
Error report -
ORA-04082: NEW or OLD references not allowed in table level triggers
04082. 00000 - "NEW or OLD references not allowed in table level triggers"
*Cause: The trigger is accessing "new" or "old" values in a table trigger.
*Action: Remove any new or old references.
From the error message, it seems like if I use :new.[column_name], then FOR EACH ROW must have to exist. Why is this? Is there any example that FOR EACH ROW is NOT needed in a BEFORE INSERT TRIGGER in Oracle?
Is there any example that FOR EACH ROW is NOT needed in a BEFORE INSERT TRIGGER in Oracle?
Simple example of statement level trigger:
CREATE TABLE test_table(col VARCHAR2(10));
CREATE OR REPLACE TRIGGER enroll_time
BEFORE INSERT
ON ENROLL
BEGIN
INSERT INTO test_table(col)
SELECT 1 FROM dual;
END;
/
I highly recommend to read about compound trigger to understand when each part is fired.
Basically, if you need to use :OLD or :NEW pseudotables, you need a row level trigger. An example of a statement level trigger would be inserting a record into a table when another table is effected.
I am writing some PL/SQL code for a apex database application. With the code a want to realise that when I make a purchase order, a purchase orderline is automatically generated based on the purchase order_id. However, I'm getting a ORA-04071 error running the code below:
create or replace trigger "INKOOPORDER_T1"/
AFTER insert or update or delete on INKOOPORDER
for each row begin
INSERT INTO INKOOPORDERREGEL
(I_nummer)
SELECT
I_nummer
FROM inkooporderregel
go
end/
Can somebody help me please?
ur query has some syntax errors
try below code
I removed / from first line and after End, put ; at the end of insert statement and deleted go.Also after end a ;
create or replace trigger "INKOOPORDER_T1"
AFTER insert or update or delete on INKOOPORDER
for each row
begin
INSERT INTO INKOOPORDERREGEL
(I_nummer)
SELECT
I_nummer
FROM inkooporderregel;
end;
I am trying to debug a trigger in Oracle SQL Developer, but I don't really understand the compiler's errors. I trying to follow the templates that I have seen, but it doesn't seem to be working out no matter what I try.
CREATE OR REPLACE TRIGGER audit_movie_insert_trig
REFERENCING NEW AS newRow
AFTER INSERT ON audit_movie
FOR EACH ROW
BEGIN
INSERT INTO audit_movie VALUES(audit_seq.nextval, newRow.title, newRow.m_year, newRow.m_length, newRow.genre, newRow.studio_name, newRow.producer, SYSDATE, 'Insert');
END;
The errors that I am getting are:
Error(2,7): PL/SQL: SQL Statement ignored
Error(2,83): PL/SQL: ORA-00936: missing expression
Any help would be great.
You have clauses the wrong way round, as the syntax diagram shows. You should referencing clause after the after insert clause.
You also need to have a colon before newRow references. And you seem to be inserting in the same table the trigger is against, but it looks like your main table is probably just called movie?
CREATE OR REPLACE TRIGGER audit_movie_insert_trig
AFTER INSERT ON movie
REFERENCING NEW AS newRow
FOR EACH ROW
BEGIN
INSERT INTO audit_movie (id, title, m_year, m_length, genre, studio_name,
producer, when, what)
VALUES(audit_seq.nextval, :newRow.title, :newRow.m_year, :newRow.m_length,
:newRow.genre, :newRow.studio_name, :newRow.producer, SYSDATE, 'Insert');
END;
I've guessed the column names. As mentioned in a comment, you should specify the column names to avoid issues when the table definition is modified, and it makes it more obvious if you try to insert the wrong values into the wrong columns.
.m_length,
Please watch out.. it starts with a "." .. u miss the alias name!
create or replace trigger "STUDENT_PERSONAL_DETAIL_T1"
AFTER insert or update or delete on "STUDENT_PERSONAL_DETAIL"
for each row
begin
insert into fa1 (s_id,name,class,sec)
select reg_no,name,class,sec
from inserted
end;
This is the trigger created using Oracle xe trigger creating interface.
It is created without error but when a insert is called on the table trigger error is shown
trigger failed -ORA-04098 is invalid and failed re-validation.
Guidance and suggestions will help a lot.
You should use:
REFERENCING new AS new
...
BEGIN
INSERT INTO fa1(s_id, name, class, sec)
VALUES (:new.reg_no, :new.name, :new.class, :new.sec);
...
see, this select statement is invalid, because there is no such table as inserted
select reg_no,name,class,sec
from inserted
EDIT if you want to log the inserted values into table fa1, you would do something like, if you had the following columns in table STUDENT_PERSONAL_DETAIL: reg_no,name,class,sec
create or replace trigger "STUDENT_PERSONAL_DETAIL_T1"
AFTER insert on "STUDENT_PERSONAL_DETAIL"
for each row
begin
insert into fa1 (s_id,name,class,sec)
values (:new.reg_no, :new.name, :new.class, :new.sec)
end;
Note the clause AFTER insert on "STUDENT_PERSONAL_DETAIL". I have omitted or update or delete to make sure this will only be triggered for newly inserted records. (because you tried to select from table 'inserted', I have concluded that's what you want to do)