SQL & PL/SQL :: Trigger To Update And Insert Together?
May 7, 2010
I have to write a trigger where when the table is updated then one column named 'Status' should be updated as 'U' and if arow is inserted in the table then the column 'Status' needs to be inserted with value 'I'.
Create table test_trig
(
vempno number,
vempname varchar2(20),
status char
)
New to triggers....how to go with both insert and update conditions together.
Can we write a trigger which takes care of both insert and update. I have used Merge statement where I can write conditions based on insert/update done.
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May 14, 2010
I have a base table (Table A) block with multiple records displayed. I need to track audits to this underlying table in the following way:
If user updates a field in the block I want the pre-changed record's audit fields to be set and I need to create a copy of the record with the changed values. Basically any changes will result in the record being logically deleted, and a copy record created with the newly changed values.
Tried to implement in the block's pre-update trigger which will call a package to directly update Table A then Insert into Table A, then requery the block. Is there a clean and efficient way to do this?
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May 29, 2012
i want to create a trigger that will update a table when there is an insert or update.i can't across this error that i don't even know what it means "table %s.%s is mutating, trigger/function may not see it".
*Cause: A trigger (or a user defined plsql function that is referenced in this statement) attempted to look at (or modify) a table that was in the middle of being modified by the statement which fired it.
*Action: Rewrite the trigger (or function) so it does not read that table.
CREATE OR REPLACE TRIGGER set_date_end
BEFORE INSERT OR UPDATE OF issued ON shares_amount
FOR EACH ROW
DECLARE
BEGIN
INSERT INTO shares_amount(date_end) VALUES(SYSDATE);
END set_date_end;
/
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Jun 2, 2011
Select * from Table A where emp=1;
Emp AID
1 111
select * from Table B where emp=1 ;
----------
AID, emp, start_dt, End_dt
111 1 01-jan-2011 31-dec-2011
112 1 01-jan-2011 31-dec-2011
113 1 01-jan-2011 31-dec-2011
I have After insert or update trigger on Table B. This will update AID column on Table B.
after insert update on table B
update A
set AID=:new.AID where emp=:new.emp;
if i end date any record on table B i wanted to update max(AID) on Table A.
EX update table b
set end_dt= sysdate-1
where aid=111;
So I wrote the trigger on Table A as below
before insert or update on trigger A
declare
v_aid number;
v_strt_dt date;
v_end_dt date;
begin
select max(AID) from table B
where emp=:new.emp;
select v_end_dt from table B where aid=:new.Aid;
if v_end_dt<sysdate then
:new.aid:=v_AID;
end if;
But the problem here is its giving mutating error.Then i tried with autonomus transaction but it willreturn old value when it fiers.
So how can i achive both the task at a time.That means i have to endate Table A , Same time i have to update active max(AID) to table B.
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Feb 1, 2011
I am calling an after insert Trigger on table1.
In the trigger I am calling a procedure that returns an error if there is any error returned from procedure. I have to update the table table1's column error_desc (for the same new inserted record for which the trigger was called) with the error received by OUT parameter of procedure called in trigger. I have to update the same record on whose insert this trigger was called.
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Feb 6, 2009
I am trying to write a trigger that will do an insert/delete/update into a audit table when a change has occurred on the primary table. The change will be recorded in the audit table by a incemental sequence number and the updated data.
there will be an extra column in the audit table
how to get a simplified version of this trigger.
the primary table will look like so
Id_num varchar (20)
code Integer
desc varchar(20)
sequence_num Integer
audit table
Id_num varchar(20)
code Integer
desc varchar(20)
timestamp date
sequence_num Integer
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Feb 19, 2011
SQL> CREATE OR REPLACE TRIGGER TRI_COMPL_FEATURES
2 AFTER INSERT OR UPDATE ON COMPLEMENTS FOR EACH ROW
3 DECLARE
4 v_fno NUMBER;
5 v_tab VARCHAR2(30);
6 v_unique_id VARCHAR2(40);
[code]....
Trigger created.When I am trying to insert into complements table it is throwing error as follows:
SQL> insert into complements values(19,NULL,'5',6,7,NULL,'W2023648',NULL,NULL);
insert into complements values(19,NULL,'5',6,7,NULL,'W2023648',NULL,NULL)
*
ERROR at line 1:
ORA-20010: ORA-04091: table TEEMNGWS.COMPLEMENTS is mutating, trigger/function
may not see it
ORA-06512: at "TEEMNGWS.TRI_COMPL_FEATURES", line 19
ORA-04088: error during execution of trigger 'TEEMNGWS.TRI_COMPL_FEATURES'
I can understand that I am trying to perform DML operation(i.e select) on table which trigger is fired.But how can I implement the same logic when AFTER INSERT OR UPDATE trigger is written.
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Mar 4, 2013
We would like to create functions to insert and update our tables and would like to make it not possible to update and insert the table directly outside of the function. Is there a way to do that in the trigger?
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Jul 4, 2013
Table A basically has 4 rows of interest, an outside event changes/inserts let's say row 1.
Row 2 and 3 have to be changed in a trigger depending on the new value of 1.(or not if the value stays the same)
Row 4 is the reference for the update and will not be changed.
My first simple AFTER INSERT or UPDATE trigger obviously failed because of the mutating table error.
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Jan 25, 2012
After many tests I can't make work and update of the same table inside the same table.
Trying to avoid Mutating Table Error now I have
ORA-00036: maximum number of recursive SQL levels (50) exceeded
Sample Data :
create table test_compound (USERID VARCHAR2(10),APP VARCHAR2(15),LAST_UPDATED_ON TIMESTAMP);
insert into test_compound values ('user1','1',systimestamp);
insert into test_compound values ('user2','2',systimestamp-4);
insert into test_compound values ('user3','3',systimestamp-6);
CREATE OR REPLACE TRIGGER trigger_test
FOR UPDATE ON test_compound
COMPOUND TRIGGER
TYPE t_tab IS TABLE OF VARCHAR2(50);
l_tab t_tab := t_tab();
[code].......
When I execute :
update test_compound
set last_updated_on=systimestamp
where userid='user1' and app='1';
The trigger should update the first row and all the data from test_compound table where userid='user1'. Maybe the problem is that updating the same table inside the trigger is firing in a recursive way the trigger.
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Nov 12, 2006
I have a table known as Registration in which there are columns StudentID, ModuleId, year, semester
semester = 1 or 2
I want to write a trigger so that student can register on a maximum of 4 modules per semester
i.e.
select count(*), semester from Registration where studentid='241234' group by semester
I tried the following trigger but I am stuck
If I dont use "for each row", I am not allowed to use :new and ld and when I use "for each row", count would be for each row which would be 1 or 0
create or replace trigger checkmodulecount
before insert on Registration
DECLARE
noCourse NUMBER;
nCount NUMBER;
FAILED EXCEPTION;
[Code]....
WHEN FAILED THEN
raise_application_error(-20000,'Cannot reigster for more than four courses');
END;
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May 24, 2011
In
CREATE table ALPHA (
ID NUMBER,
FK_NR NUMBER,
INPUT NUMBER,
OUTPUT NUMBER,
MY_COUNT NUMBER,
ACTUAL_TOTAL NUMBER
);
I would like to record new inputs or outputs andthe column MY_COUNT should display the actual count of records for INPUT (actually MOD(INPUT, 10) ) regarding FK_NR and ACTUAL_TOTAL should display the actual sum for all input/output for FK_NR.
--ID normally comes from a sequence and BEFORE INSERT TRIGGER
EXAMPLE
INSERT INTO ALPHA(FK_NR, INPUT, OUTPUT)
VALUES (1 ,10,NULL);
INSERT INTO ALPHA(FK_NR, INPUT, OUTPUT)
VALUES (1 ,10, 50);
[code]...
Table ALPHA looks like:
1,1,10,NULL,1,10
2,1,10,50,2,-30
3,2,NULL,20,0,-20
4,2,20,40,2,-40
5,3,40,20,4,20
6,3,-10,NULL,3,10
How can this be achieved ?I started with a
CREATE OR REPLACE
TRIGGER "BI_ALPHA"
BEFORE INSERT ON ALPHA
FOR EACH ROW
BEGIN
SELECT ALPHA_SEQ.nextval INTO :NEW.ID FROM DUAL;
END;
and thought of a
CREATE OR REPLACE TRIGGER "AI_ALPHA"
AFTER INSERT ON "ALPHA"
FOR EACH ROW
DECLARE
l_maxidNUMBER;
l_fknr NUMBER;
[code]...
But by inserting a row, this results in ORA-04091
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May 2, 2013
I must to build triggers that insert other two rows when the user insert the first record, but the First record must to change Seq to 2 (was 1) then in trigger to insert other record with seq equal 1 and more other record with seq equal 800, I tried some ways , but return error
First insert the user from application
INSERT INTO ARCTB_ACAO_IMEDIATA ( CD_ARC, CD_TIPO_ACAO, CD_ACAO_IMEDIATA, DS_ACAO, CD_RESPONSAVEL, DT_ORIGINAL, DT_ABERTURA, NR_PRAZO,DT_PREVISTA, DS_HISTORICO ) VALUES (9732, 0,1, 'TESTE','ucrwilma', To_date('02/05/2013','DD/MM/YYYY'), To_date('02/05/2013','DD/MM/YYYY'), 1, To_date('02/05/2013','DD/MM/YYYY'), '');I create triggers
CREATE OR REPLACE TRIGGER ARCTR_ACAO_IMEDIATA_I
BEFORE INSERT
[Code]....
END ARCTR_ACAO_IMEDIATA_IUreturn me error
ORA-06519: active autonomous transaction detected and rolled back
ORA-06512: at "CLIBGF.ARCTR_ACAO_IMEDIATA_IU", line 221
ORA-04088: error during execution of trigger 'CLIBGF.ARCTR_ACAO_IMEDIATA_IU'
ORA-06512: at line 7using 9.2.08
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Jun 13, 2012
I'm trying to insert data in my_second_table using a trigger and a view when I insert the data in my_first_table but there's something wrong in the code.
CREATE OR REPLACE TRIGGER my_trigger
AFTER INSERT ON my_first_table
FOR EACH ROW
BEGIN
[Code]...
I'm suspecting that the problem is in the :new.cod_emp
P.S.: I'm using: Oracle Database 11g Release 11.2.0.1.0 - 64bit Production on Enterprise Linux Server release 5.5 (Carthage)
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Apr 27, 2011
I have one table with one row with some coefficients. If I update a coefficient from my table I want to be updated all the rows from another table. I've made a trigger but in the second table I have a column for example TOTAL and I want that column to be multiplied with my new coefficient, and I want this for every row in the second table. How I can select that total column in the trigger for every single row and update it?
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Jun 4, 2012
How to make a trigger of changing value. For example I have a table of customer .
Customer_id, Cumtomer_name, cus_date and stats.
Values
102, ABC,02-06-2012 and Open
Now tell me how I can make trigger after two hours stats change OPEN TO CLOSE.
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Jun 12, 2013
I have make a new trigger.Create a trigger that inserting a new job_id MAX_SALARY assigned as the employee's salary more than 80 departmental charges
I have that code, is that correct?
CREATE OR REPLACE
TRIGGER TR27
AFTER INSERT ON JOBS FOR EACH ROW
BEGIN
(SELECT MAX(SALARY) FROM EMPLOYEES WHERE DEPARMENT_ID=80);
:NEW.MAX_SALARY := :OLD.MAX_SALARY;
END;
What I need to complete it?
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Aug 17, 2010
writing a trigger body. My requirement is i need to insert a new record in a task table when ever a new record is inserted into employee table.Here in the trigger i need to select the name of the employee in the last inserted row in employee table and insert the name in task table.I tried to write the code as below
insert into task(name, date, type) values ((select name from employee where emp_id=(select max(emp_id) from employee), sysdate, 'document'));
When i am trying to insert record using trigger, it is taking last but one record from the employee table.
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Oct 30, 2006
I must create an INSERT trigger, on an Oracle table, which will do an insert into my MS-SQL 2000 DB table.
The tables are exactly the same in this case and I desire to insert the entire row that was just insterted into the Oracle table into the MS-SQL table.
I understand how to create an ODBC connection between the DB servers, I just can't seem to understand the trigger syntax.
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Jan 13, 2011
SQL> CREATE OR REPLACE TRIGGER TRI_ABOVE_JOINTBOX
2 BEFORE UPDATE ON JOINT_BOX FOR EACH ROW
3 DECLARE
4 PRAGMA autonomous_transaction;
5 BEGIN
6 IF (:NEW.SCALE_X <> :OLD.SCALE_X) OR
7 (:NEW.SCALE_Y <> :OLD.SCALE_Y) THEN
[code]....
The above code is for the GIS project. When I am trying to implement the above trigger it is giving output in such a way that the joint box(which is point feature in the designed database) scale is fixed to 1 as written in the code,but it cannot be moved in the DGN(front end),this is because trigger is fired before update.
Actual intention is that the feature(joint box) need to move in the DGN then the trigger need to be fired so that then scale need to fixed to one even after changing.For that I implemented after update trigger in the above code,but then it is throwing error as
ORA-04084: cannot change NEW values for this trigger type. I guess this is because after update trigger cannot be implemented for bind variables old and new.
1.joint box can move in DGN(this can be acheived automatically if after implementing after update trigger).
2.after dragging in the DGN the scale to be fixed as 1.
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Nov 24, 2011
CREATE or REPLACE TRIGGER Emp_Ins_Upd_Del_Trig
BEFORE delete or insert or update on EMP
FOR EACH ROW
BEGIN
if UPDATING then
[Code] .....
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Nov 24, 2010
I am ceating a trigger to...when I update or insert a record in table and if salary of that record is less than 1600 than it should be updated to 2000. My trigger is
CREATE or REPLACE TRIGGER myTrigger
BEFORE UPDATE OR INSERT ON newemp
FOR EACH ROW
BEGIN
[code]...
There are no errors with trigger while compiling, but when I update or insert a record, it does not update the table. It looks like the trigger is being ignored.
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Apr 2, 2012
I have 2 tables where the data is related.table ot_pack_list,ot_delv .ot_pack_list contains details of items information that are packed to be delivered sometimes what happens user may remove some items from this, and the summary column of dl_wt and dl_qty in ot_delv must get automatically changed whenever there is addition in ot_pack.
create table ot_pack_list (item varchar2(12),pack_qty number,pack_wt number,pack_no number)
insert into ot_pack_list values ('a',2,10,1);
insert into ot_pack_list values ('b',3,55,1);
create table ot_delv (d_no varchar2(12),d_qty number,d_Wt number,d_pack_no number)
[Code]...
--after updating the data in ot_delv should be like..
select * from ot_delv;
d_no d_qty d_wt d_pack_no
----- ----- ---- -------
1 5 75 1
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Aug 14, 2012
I am writing a trigger TR_EMP on a table EMP which has columns EMP_ID, EMP_NAME, ALT_EMP_ID.
Now I am updating ALT_EMP_ID for an EMP_ID(PK) which is unique.
If ALT_EMP_ID is null
then
:new.ALT_EMP_ID = l_alt_emp_id;
end if;
As this ALT_EMP_ID is unique, same ID shouldn't be inserted again here. When data being inserted with 2 different sessions for 2 different EMP_ID there is a possible chance of inserting same ALT_EMP_ID for both which results in Unique error. I need to handle this exception. DUP_VAL_ON_INDEX or OTHERS Execption not able to handle this.
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Jan 17, 2013
I need a trigger to fire whenever an update happens. Seems easy, but there are several problems there:
- I need it to fire in case both :OLD and :NEW are the same value. i.e. I've got "5" currently in the field, and I update and set the same field to "5" again.
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May 5, 2011
I hit a bottleneck where my insert trigger won't execute the insert statement (with subquery). See illustration below:
Step# 1 - Table definition:
Table_A(a1 number, a2 varchar(10), a3 varchar(10))
Table_B(b1 number, b2 varchar(10), b3 varchar(10))
Table_C(c1 number, c2 varchar(10), c3 varchar(10))
Step# 2 manipulated the tables:
Inserted 3 records in Table_C.
Then I created an Insert Trigger to Table_A with an insert statement into Table_B and a subquery to Table_C. Please see below:
CREATE OR REPLACE TRIGGER TABLE_A_TR
after INSERT OR UPDATE OR DELETE ON TABLE_A
FOR EACH ROW
DECLARE
[code]......
Step# 3 compiled the created trigger and I've successfully compiled it.
Step# 4 Tested the trigger (TABLE_A_TR) using an insert statement to TABLE_A.
Insert into TABLE_A values (1,'testa','testb')
I've successfully insert the values into TABLE_A however I've observed that the trigger didn't execute the insert statement because TABLE_B has an empty rows. I tried to manually execute the insert statement just to see if there's an issue in my insert statement but I've successfully populated the values into TABLE_B. So I'm wondering why the trigger didn't execute the insert statement.
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Feb 1, 2013
In the attached PRE-INSERT Trigger Code i need to do a validation. Validatation: If the Date range is between FEB 6 2013 and MARCH 1 2013 then the code should work ELSE It should throw a message
Check_Product_Title;
Begin
if :prod2.internet_product_flag = 'Y' and :prod2.brnd_code is null then
soft_messages('E',TRUE,'Brand code must be specified for CCH online product');
end if;
[Code]....
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Nov 10, 2010
my purpose is when PRE-INSERT trigger fires validation should be done like date format , primary key in table if validation is ok then a value of text box should be set to sequence no . else it should generate message
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Feb 1, 2013
I have three tables.
One for projects, one for volunteers, and a bridge entity for the many to many relationship between the Project and Volunteer.
In Project table, I have a field called, Volunteers_currently_signed_up, which means the number of volunteers currently signed up to participate in a project.
When I add an entry to my bridge entity which is composed of Volunteer_ID and Project_ID, I want the Volunteers_currently_signed_up to increment by 1, where the Project_ID in the bridge entity corresponds to that in Project.
I have very very little PL/SQL, and this is my amateur attempt so far:
CREATE OR REPLACE trigger "BI_Volunteers_currently_signed_up"
BEFORE INSERT OR UPDATE ON Volunteers_in_project
for each row
WHERE Volunteers_in_project.Project_ID=Project.Project_ID;
begin
Project.Volunteers_currently_signed_up += 1;
end;
/
write a trigger that achieves the above
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Jun 1, 2010
I have 2 table events and concerts. The event table has event_id, concert_id and event_date fields, the concert table has concert_id, name, artist, type and cost.
I need to insert a trigger that 'jazz' concerts cannot be run in January. This is my attempt:
CREATE OR REPLACE TRIGGER rock_december
BEFORE INSERT OR DELETE OR UPDATE ON event
FOR EACH ROW
IF event.type = 'jazz' and AND ((event.event_date) BETWEEN
'01-DEC' And '31-DEC'))
RAISE_APPLICATION_ERROR(-20100,'Jazz event can not be booked in January');
END IF;
END;
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