SQL & PL/SQL :: Create Trigger On Students After Entering Values
Jan 10, 2012
i have a table students create table students (name varchar2(10),rolno number(10),sub1mark number(10),sub2mark number(10),total number(10),percentage number(10),status varchar2(10))
i am go to create trigger on students after entering the values of name,rolno,sub1mark,sub2mark the values of total & percentage come automatically .trigger is
CREATE OR REPLACE TRIGGER UCSETH.students_comm_trig
BEFORE INSERT ON UCSETH.STUDENTs FOR EACH ROW
BEGIN
set NEW.total = new.sub1mark+new.sub2mark;
set new.percentage=new.total/2;
[code]....
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Jul 1, 2013
previously i set null constraint to the column and creating some rows and need to change new entering values as not null constraint to the column in oracle without disturbing the old records. how can I do that.
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Mar 1, 2011
I need to run a query for students that took ALL the following courses: 6710, 6711, 1032, 1035 and ANY of the following courses: 3061,3065
here is my query:
=SELECT distinct student_number, last_name, first_name, gender, ethnicity, students.grade_level, lunchstatus, course_name, course_number ,termid
from students inner join storedgrades on students.id=storedgrades.studentid
where students.schoolid='0976111'
and (students.grade_level >'9' and students.grade_level <= '12')
and (course_number = all('6710', '6711', '1035')and course_number=any('1031','1032','3061','3065','3062', '3401', '3082'))
order by last_name, first_name, grade_level, course_number
The problem is that I'm not getting any results but I know for a fact that some students took the required courses. On a side note, if I change the ALL to ANY - I do get results - but it is not what I want because it would be hard to keep track of the students that met the requirements.
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May 10, 2007
I have been asked to show the names and room number according to students who have 4 classes in a room.
select s.name, r.room_no
from s, r
where r.room_no = u.room_no
and e.unit_code = u.unit_code
GROUP BY s.name, r.room_no
HAVING COUNT(DISTINCT s.stu_no) > 4;
However I get the error 'ERROR at line 4:
ORA-00904: "U"."UNIT_CODE": invalid identifier'
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Mar 5, 2008
I have a SQL link table called student_monitor containing the follwing attributes and e.g. data
student_id, Class_id, Predicted_Grade, Actual_Grade
1 1 A C
2 1 B B
3 1 C B
I need to be able to flag which students are under achieving on their target grades and dont know how to do this or the best way to do this as i cannot calculate the diff between a char?
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Jan 16, 2012
I have a trigger on insert which sets a :new field if it is net set.Basically:
CREATE OR REPLACE TRIGGER my_schema.T_OBS_BEF_IU
BEFORE INSERT OR UPDATE ON my_schema.OBS FOR EACH ROW
BEGIN
If :new.work_db is null Then
:new.work_db := my_package$PARAMETER.Get_label ('DEFAULT_WORK_DB'); -- function returning varchar2(200)
End if;
END;
/
It usually works fine. With jdbc, when the application insert a null value, the trigger replaces it with the good value.When the application can determine the non-null value, it is written in the table.
But when the trigger is restarted to a savepoint, due to a table lock, the second execution of this trigger goes wrong. The input :new.work_db value is not null anymore, nor has the correct value. Most of the time, it has the ascii 00 value (NUL), sometimes another weird character.
Do you know if my trigger code is correct, or if there would be some limitations ?
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Apr 16, 2013
I am learning oracle trigger, i have one query.
Can i increment the old column value in trigger.
eg: :new.cid := :old.cid+1;
is this is correct.
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Aug 10, 2010
I am working on convertion of triggers from SQL SERVER to Oracle. I got them converted using a tool. But not sure how to correct the below trigger which uses '*' in sql server.
Code in SQL SERVER :-
CREATE TRIGGER INSERT_AUDIT ON T_AUDIT
FOR INSERT AS
INSERT INTO T_AUDIT_LOG
SELECT 'INSERT','AFTER', CURRENT_TIMESTAMP, NULL,*
FROM INSERTED
Converted into Oracle:-
CREATE OR REPLACE TRIGGER INSERT_AUDIT
BEFORE INSERT
ON T_AUDIT
FOR EACH ROW
INSERT INTO T_AUDIT_LOG
VALUES ( 'INSERT', 'AFTER', SYSTIMESTAMP, NULL, * );
END;
how can I remove the *. I tried replacing the * with the rest column names prefixing with :NEW.
the last 3 columns when are c_data1,c_data2,c_data3 as :-
INSERT INTO T_AUDIT_LOG
VALUES ( 'INSERT', 'AFTER',SYSTIMESTAMP NULL, :NEW.c_data1,:NEW.c_data2,:NEW.c_data3);
But this gives error:-
PLS-00049: bad bind variable 'NEW.C_DATA1'
PLS-00049: bad bind variable 'NEW.C_DATA2'
PLS-00049: bad bind variable 'NEW.C_DATA3'
how can I convert this code.
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Sep 30, 2010
I am facing a problem while inserting primary keys using a sequence. Following is my case
I have a Master Table, say M_A, and 2 detail tables D_1 and D_2. I am trying to generate primary keys for the master and detail table as well as the reference keys for the detail tables using sequence.
I created a pre-insert trigger, say preInsertTRIG
proc_ABC(pri_key_master OUT VARCHAR2,
pri_key_detail1 OUT VARCHAR2,
fk_detail1 OUT VARCHAR2,
pri_key_detail2 OUT VARCHAR2,
[Code] ........
I am able to insert the P.K of the master table as well as P.K of one of the detail table. However, it fails to insert the P.K of 2nd detail table and reference keys for both the detail tables. I know there are other simple methods available in Forms, but I have to do it by this procedure only
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Jan 28, 2013
how to create the trigger that count the last 7 day about from sale table if the last 7 day amount is greater then 10000 then update the commission 2% other wise do nothing
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May 9, 2013
I cant create a trigger for the following problem "write a trigger to change the "hiredate"(in emp tale) in the default format even if the user enters it in some other format, say year/mon/date..."
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Oct 30, 2008
i'm getting ORA-04091: error when using a trigger to subtract ncopies values of table (rental ; after i insert a NEW record in it ) from cno value of table (copies) to give me the remaining no of copies of a book .
my tables and code is as folllows:
1)COPIES;
CID CNO BOOK
----- ---------- --------------------
A1 5 BOOK1
B1 10 BOOK2
2)rental;
Name Null? Type
------------------------------- ---
RID NOT NULL VARCHAR2(5)
CID VARCHAR2(5)
NCOPIES NUMBER(2)
1 CREATE OR REPLACE TRIGGER NO_COPIES
2 AFTER INSERT ON RENTAL
3 FOR EACH ROW
4 DECLARE
5 K VARCHAR2(5);
[code]....
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Jul 15, 2013
I have a multi record block based on a view. All records in the view are displayed in the block by use of Post-Query trigger when entering the form.
The block has 5 items as follows:
1) RECORD_STATUS = a non-base table column which is a checkbox.
2) ITEM_TYPE = a text-item which has an LOV attached.
3) ITEM_TEXT = a text-item which is free format text.
4) LAST_UPDATE_DATE a date column
5) STATUS = a text item either 'Open' or 'Closed'
The LOV is based on a table of Item Types with values say, 'Type1', upto 'Type9'.
I have a Wnen-New-Record-Instance trigger which 'Posts' changes to the database. This has been included as i want to limit the values of the ITEM_TYPE column to values which have not been previously used.
Consider this scenario...
The block has 3 records.
record 1 has 'Closed' status so no updates are allowed.
record 2 has 'Open' status so updating of Item_Text is allowed.
record 3 has 'Open' status so updating of Item_Text is allowed.
I check the RECORD_STATUS checkbox on record2.
(This sets the RECORD_STATUS checkbox to a checked value and changes the STATUS column to 'Closed' by When-Checkbox-Changed trigger.) At this point the record has not been saved so if you uncheck the checkbox , then the STATUS column will go back to 'Open'. However at this point i will leave it as Checked (Closed).
I then insert a new record, only values Item4 to Item 9 are correctly shown in the LOV. I select Item4.
I then go back to the previous record and uncheck the Checkbox to say that i wish to leave it 'Open' after all (in effect no changes have occurred), then the STATUS column correctly reverts back to 'Open' by my WCC trigger. If i then SAVE the changes, the new record has been inserted on the database correctly, however the LAST_UPDATED_DATE from the record which was checked and then unchecked has also been updated incorrectly even though no net changes have actually occurred.
(because i am using WNRI trigger to limit the List of Values on the LOV column, this has incorrectly set the previous records LAST_UPDATED_DATE column to be Sysdate.)
How can i stop this from happening?
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Aug 13, 2010
Create a trigger that stamps the date_created and the date_updated column with current date on new and updated records?
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Apr 16, 2010
How do I create a trigger for the age. I want an alert to appear when the date of birth field is less than the age of 17. The formula is age=sysdate-dateofbirth
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Apr 12, 2013
i would like to create a sequence inside a dml trigger. Is it possible? I created a trigger and it is compiled sucessfully.
create or replace trigger tri_update_test
after delete on test
declare
pragma autonomous_transaction;
[code]...
trigger created sucessfully.And i try to delete data from the test
delete from test where id=5;
Output:
ERROR at line 1:
ORA-01031: insufficient privileges
ORA-06512: at "SCOTT.TRI_UPDATE_TEST", line 4
ORA-04088: error during execution of trigger 'SCOTT.TRI_UPDATE_TEST'
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May 11, 2010
I'm trying to create a trigger and procedure to go along with my DDL. Everything is created just fine, but when I try to execute an update on the table monitored by the trigger I get the following error:
update housing set group_num = 1 where room_num = 10
ERROR at line 1:
ORA-00937: not a single-group group function
ORA-06512: at "YANKEEFAN146.VIOLATION_CHK", line 6
ORA-04088: error during execution of trigger 'YANKEEFAN146.VIOLATION_CHK'
/* DDL */
create table violation_type
(violation_num number(1) primary key,
violation_def varchar2(100) not null)
organization index
tablespace mi257_data;
[code]....
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Jun 20, 2012
I'm looking to create an after logon trigger... my question is - can this trigger be created by any user (i.e. other than sys) and - if so - what's required to ensure it fires for EVERY other user that log's on to the database?
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Feb 1, 2013
Is it possible to create table using trigger?
I tried but failed...
CREATE OR REPLACE TRIGGER tri1
AFTER UPDATE
ON dept
FOR EACH ROW
declare
pragma AUTONOMOUS_TRANSACTION;
BEGIN
execute immediate 'create table dept_dum as select * from dept';
END;
/
SQL> update dept set deptno=23 where deptno=10;
update dept set deptno=23 where deptno=10
*
ERROR at line 1:
ORA-01031: insufficient privileges
ORA-06512: at "SCOTT.TRI1", line 6
ORA-04088: error during execution of trigger 'SCOTT.TRI1'
I am running this as scott user
My requirement is to
create table as select * from table_name where flag=1
This has to be done parallel for all the tables for which this flag is enabled and by that trigger delete all those rows which were backed up as table.
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Feb 20, 2012
I have two tables as
Table LEAVE
Column Type Null Description
APP_NO Number(6,0) Not Null PK Leave Application Number
ECN Number(6,0) Not Null FK Employee Code Number
APP_Date Date Not Null Date of Application
From_Date Date Not Null Date from which the leave starts
TO_Date Date Not Null Date upto which the current application leave remains i.e. end of leave applied for date
NO_OF_Days Number(2,0) Not Null Difference between TO_Date and From_date
LEAVE_TYPE VARCHAR2(3) Not Null Can be one of SL, CL, LWP or LTA
Status VARCHAR2(25) Not Null Can be one of Saved, Rejected or Approved
Remark VARCHAR2(100) Nullable Reason to be put if status is rejected
[code]....
What I really want to do is that when a record is inserted in the LEAVES table (an application for leave is submitted by any employee and if it is approved) then I want to update the _USED values of the corresponding LEAVE_TYPE in the LEAVEENTITLE table which holds values of types of leaves entitled to employee.
For example if 3 rows are inserted in the LEAVES table as
INSERT INTO LEAVES (APP_NO,ECN,FROM_DATE,TO_DATE,APP_DATE,NO_OF_DAYS,LEAVE_TYPE,STATUS,REMARK)
(1,1234,'2012-01-01','2012-01-05','2012- 01-01',5,'SL','APPROVED',null);
INSERT INTO LEAVES (APP_NO,ECN,FROM_DATE,TO_DATE,APP_DATE,NO_OF_DAYS,LEAVE_TYPE,STATUS,REMARK)
(2,1235,'2012-01-01','2012-01-05','2012- 01-01',5,'CL','SAVED',null);
INSERT INTO LEAVES (APP_NO,ECN,FROM_DATE,TO_DATE,APP_DATE,NO_OF_DAYS,LEAVE_TYPE,STATUS,REMARK)
(3,1236,'2012-01-01','2012-01-05','2012- 01-01',5,'LTA','REJECTED','Clash with the annual meet, revise dates');
Then the value of SL_USED in the LEAVEENTITLE table of record corresponding to the ECN = 1234 should be updated with +5 and naturally the SL_ UNUSED value of the record should be updated as SL_ENTITLED - SL_USED. For the APP_NO 2 and 3 none of the values in LEAVEENTITLE should be updated as the STATUS is not 'APPROVED'
I tried with the following trigger, but is compiling with a warning (not showing what the warning is)
CREATE OR REPLACE TRIGGER leaveentitle
AFTER INSERT ON LEAVES
FOR EACH ROW
BEGIN
UPDATE LEAVEENTITLE LVE
SET LVE.SL_USED = SL_USED+(CASE
WHEN :NEW.LEAVE_TYPE = 'SL'&& NEW.STATUS='APPROVED'
THEN :NEW.NO_OF_DAYS
SL_UNUSED=SL_ENTITLED - SL_USED
ELSE 0
END),
[code]....
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Feb 14, 2013
I have two tables one is
1)create table abc(c_name varchar2(10),c_number number(6),c_loc varchar2(8)); --having values
2)create table temp(sname varchar2(10),sid number(4),address varchar2(10));---no having
and my question is how to insert a values into temp using when-button-pressed trigger based on abc table in oracle form.
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Nov 28, 2011
We have an application is must be connected to our database for specific requirements in our company but this application has a very bug thing as we must write the super DB password "Like HR password as example" clear in some files and these files must be shared so developers can use the HR password to do any action !!! I know that this application is a problem but we have to install
I can do this by creating trigger on each table will restrict DML. As example: if the operating system user is XXX, the trigger restrict the action. But not logic at all to create more than 1000 triggers on schema (This will impact badly on DB performance).
So, i need to create one trigger to fire before doing any DML on all schema tables. As example: If "MMM" the administrator operating system user trying to do insert action, he can do the action. BUT If "DEV" the developer operating system user trying to do insert action, the trigger must fire here to restrict this action.
Be noted also, i need this trigger not depend on any specific tool like Toad as any user can simply rename the exe file for toad then he can pass the trigger. At least, trigger must depend on (Operating system user & Action_type)
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Aug 16, 2013
i want to give privilege of create trigger,procedures and functions privileges to a user "A"on the schema "B". how can i do it. i've already given select,insert,update,delete privilege to user "A"
how can user "A" create trigger(etc.) on tables of user "B".
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Oct 14, 2010
I Created a form just for testing purpose [Which is i attached]
My Table is TEST0
Structure of table :
---------------------------
NOVARCHAR2(5)
NAME VARCHAR2(10)
FLG VARCHAR2(1)
My Task is When i added a record, e.g if on form, i add name - AAD But its must save on TEST0 Table like this way EMPAAD...means always concate with 'EMP'||:Block.name while saving on database..
I know how to do with front end application, but i want to achieve this task by using trigger on backend databse...how to create a Trigger on backend....i try a one trigger but it give me error- Unable to insert Record...
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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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May 25, 2011
I have following schemas in my database scott,sh,hr...I created a triger on a schema scott with the following method
1. sqlplus / as sysdba
2. CREATE TABLE LOGIN_AUDIT_INFO_ALL (
operation VARCHAR2(30),
obj_owner VARCHAR2(30),
object_name VARCHAR2(30),
sql_text VARCHAR2(64),
attempt_by VARCHAR2(30),
attempt_dt DATE);
3.CREATE OR REPLACE TRIGGER login_audit_prod_schemas
AFTER CREATE OR ALTER OR DROP
ON SCOTT.SCHEMA
[code]....
But it don't fulfill my requirement. trigger is fired when scott perform any action. but my requirment is that trigger should be fired when create action is performed on scott by hr,sh or scott. i also want a single trigger which fulfill the requirement.
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Apr 28, 2011
i would like to trace some connexions on database, once compile the code , i have the issus following:
10/2 PL/SQL: SQL Statement ignored
11/20 PL/SQL: ORA-00942: table or view does not exist
this is the
DROP TABLE connect_user;
CREATE TABLE connect_user
(
nom_ora varchar2(15),
naom_os varchar2(15),
programme varchar2(20),
poste varchar2(20),
[code]...
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Apr 16, 2013
i have created a trigger on a table after update. i am using if condition if the condition is true i am passing a value and then inserting into audit table.
if(condtion)
L_change_type='value'
end if;
if(condtion)
L_change_type='value'
end if;
if(condtion)
L_change_type='value'
end if;
if(condtion)
L_change_type='value'
end if;
Then i am inserting
Insert into audit_table(change_type.....)
values(..L_change_type)...)
If i want to skip the insert statement for particular condition wt i have to do.
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Dec 3, 2010
I have created a procedure to build trigger dynamically using Dynamic SQL. Here procedure created successfully, when we execute the procedure to build trigger getting the following error.
Note: We are able to create a Trigger, but it is INVALID. if we get the code of a trigger and execute, trigger created a successfully with Valid Status.
ERROR:
ORA-24344: success with compilation error
ORA-06512: at "APPS.CREATE_TRIGGER", line 28
ORA-06512: at line 2
SQL*Plus internal error state 2087, context 47:0:0
Unsafe to proceed
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Dec 30, 2010
table
CREATE TABLE "TEST"
("CONTRACT_REF_NO" VARCHAR2(20 BYTE) primary key,
"CHG_GL" VARCHAR2(9 BYTE),
"CHG_GL_1" VARCHAR2(9 BYTE),
"CHG_GL_2" VARCHAR2(9 BYTE),
[code]...
10 rows selected.
create or replace view test_view
as
select 1 id,CONTRACT_REF_NO,chg_gl
from test
union all
[code]...
11 rows selected.
I have done only for one id.
so the problem is the front end is showing this test_view that people will modify.but they have to actually modify the table ,so I can think of an instead of trigger(instead of insert and instead of update ones).
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