Learn Table Auditing using DML Triggers in Oracle Database and Increase the level of security by keep an eye on user tempering your table data.
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This is Manish from RebellionRider.com
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That’s cool
for a table with single column it’s ok but what if for a table with number of columns.. i mean for old and new values.
while creating audit trigger for a table with multiple columns if i need to insert column name which is updated into audit table, how can u do that?
Can we make this trigger on a view and not directly on the main table?
after execution of trigger CREATE or REPLACE TRIGGER superheroes_audit
BEFORE INSERT OR DELETE OR UPDATE ON superheroes
FOR EACH ROW
ENABLE
DECLARE
v_user varchar2(30);
v_date varchar2(30);
BEGIN
SELECT user, TO_CHAR(sysdate, ‘DD/MON/YYYY HH24:MI:SS’) INTO v_user, v_date FROM dual;
IF INSERTING THEN
INSERT INTO sh_audit (new_name,old_name, user_name, entry_date, operation)
VALUES(:NEW.SH_NAME, Null , v_user, v_date, ‘Insert’);
ELSIF DELETING THEN
INSERT INTO sh_audit (new_name,old_name, user_name, entry_date, operation)
VALUES(NULL,:OLD.SH_NAME, v_user, v_date, ‘Delete’);
ELSIF UPDATING THEN
INSERT INTO sh_audit (new_name,old_name, user_name, entry_date, operation)
VALUES(:NEW.SH_NAME, :OLD.SH_NAME, v_user, v_date,’Update’);
END IF;
END;
I am getting following error :
Error starting at line : 7 in command –
v_date varchar2(30)
Error report –
Unknown Command
SP2-0552: Bind Variable “NEW” is not declared.
PL/SQL procedure successfully completed.
in trigger i want to insert the a row information which been having old date into another table but condition is 1st having only five records if u insert 6th record then that one is delete how tell me condition anyone plz
WHat was the “:NEW”, “:OLD”. I tried executing this code and it wanted binds or something.
Awesome staff thumbs up enjoying your tutorials
can you please give us a video on table audit trigger
about the table having multiple columns
MANISH…… Question,
where does sh_name comes from?? and m facing error Trigger is invalid :/
This worked for me. Excellent!
Hi, excelent video, i want to know how to make this for any change in any column from table or for any table in complete schema.
helpful af
I have one doubt- I dont see that the dbms_output.put_line is mentioned anywhere in the code than how the output is showing as one row is inserted by HR?
thank you very much manish from rebelion rider
sir pls upload procedre videos as soon as possible after trigger and upload the interview questions with answer
i have a doubt in select user line….what does the dual mean?????????????
how can i get a code to audit trigger that works with loop ,
why are u using here superheroes table instead of sh_audit table?
Can we use :old and :new if we use after in trigger?
hello, sir I am getting this following error while compiling script of complex trigger for auditing.
Error report:
Unknown Command
Bind Variable “NEW” is NOT DECLARED
anonymous block completed
where you created superheroes table
Thanks for the tutorials manish, are you planing on doing one on FORMS and REPORTS, from installation and everything, if you do ill be very interested
Shame on those who dislike the video…
Why are we using “BEFORE” on DML when we are actually checking “AFTER” the DML was executed?
Hi manish
I have question
Q) let’s consider a string ‘SRABANA KUMAR BEHERA’
i want to bring 2 character from each word like ‘SRKUBE’ how can I?
sir if want to audit whole table ???
can i use :OLD.table_name ????
or is there any other trick to audit more than one column in a table???
thanks
its work but the message (one row inserted by hr ) not showing what i should i do
If I have many users on my application how can I know who the REAL user that inserted or updated the data on the table?
Awesome Best stuff for learning PL SQL and SQL . Really great work especially in this video as showing the real time use boosts my interest further. I am watching all the videos in the playlist of PL SQL
Your awesome man …!!!!
What happens if HR user rollbacks a DML operation done?
Below error occer when i try to process dml on a table which also has a trigger in same table
the requrement based on after dml how to handel such senario .
1 CREATE OR REPLACE TRIGGER autoinsert
2 AFTER INSERT OR UPDATE
3 ON triggertest
4 FOR EACH ROW
5 declare
6 pragma autonomous_transaction;
7 BEGIN
8 IF INSERTING THEN
9 insert into triggertest (ib,id) values(user,sysdate);
10 elsif UPDATING then
11 insert into triggertest(ub,ud) values(user,sysdate);
12 end if;
13 commit;
14* END;
SQL> /
Trigger created.
SQL> insert into triggertest(empno,ename,sal) values(1234,’JAMES’,890);
insert into triggertest(empno,ename,sal) values(1234,’JAMES’,890)
*
ERROR at line 1:
ORA-00036: maximum number of recursive SQL levels (50) exceeded
ORA-06512: at “SCOTT.AUTOINSERT”, line 5
ORA-04088: error during execution of trigger ‘SCOTT.AUTOINSERT’
ORA-06512: at “SCOTT.AUTOINSERT”, line 5
ORA-04088: error during execution of trigger ‘SCOTT.AUTOINSERT’
ORA-06512: at “SCOTT.AUTOINSERT”, line 5
ORA-04088: error during execution of trigger ‘SCOTT.AUTOINSERT’
ORA-06512: at “SCOTT.AUTOINSERT”, line 5
this tutorial was simply godlike
You’re better than my textbook and crappy college instructor combined
Amazing…
nice explanation but i want how debugging the pl/sql code and how to return more than one value by using ref cursor.. pls upload that related videos.. 🙂
Thanks Manish. Learning from your tutorials is a real pleasure…
best tutorial thankyou so much 🙂
sir here what is the difference between using triggers or simply using DML like insert delete and update commands …please help me.
WHAT IS A SH_NAME COLUMN?WHERE A CREATE THAT TYPE?
sir , can we use multiple source column names in this program??????