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;
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.
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.
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'
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?
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 ?
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'
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
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
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..."
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 .
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 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
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'
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]....
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?
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.
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]....
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)
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".
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...
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;
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.
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.
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
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).
