I would like to create a trigger on a table, but only if the table exists.
This is what i've got so far:
create or replace function tableExists (tablename in varchar2) return boolean
is
c int;
begin
[Code].....
This would give me the error:
PLS-00103: Encountered the symbol "CREATE" when expecting one of the following: ( begin case declare exit for goto if loop mod null pragma raise return select update
I need to create a trigger for the below case:
index_id Time_vertex_id date rate pre_rate
4 1 17-06-2011 4.7 6.4
4 1 16-06-2011 6.4 7.4
4 1 14-06-2011 7.4
4 1 15-06-2011 8.4 7.4
the index_id and time_vertex_id will be unique and when the date is 17th i.e the first date will be inserted the current rate will be 4.7 and the previous rate will be blank and when another date is inserted i.e 16th the previous rate of 17th will be the current rate of 16th i.e 6.4.
when 14th is being inserted, the previous rate of 16th will be the current rate of 14th i.e 7.4 and if after 14th is being inserted, 15th is being inserted, then the previous rate of 16th should be updated as per the current rate of 15 say 8.5.
We make a 'SELECT' and then create a file with the results and send it by email... what we want to do is , if there are no results from that select , not sending the email neither creating the file..
View 5 Replies View RelatedI am trying to create trigger through Procedure due to following reasons-
1. The name of the column on which trigger will execute, is to be fetched dynamically.
2. The name of the column to be updated, is to be fetched dynamically.
Here is the sample code-
CREATE OR REPLACE PROCEDURE test2
IS
var VARCHAR2 (4000);
uname VARCHAR2 (30);
attribtask VARCHAR2 (100);
mapcol VARCHAR2 (100);
BEGIN
[code].........
On execution, the procedure throws the error of 'Insufficient privileges'. The 'var' seems to be the main culprit because the issue disappears if var is set to 'select * from dual'. Also, if i take the output (value of var) given by DBMS_output.put_line function and execute it explicitly, trigger gets created.
In addition- The procedure is (and being executed) within the same user/schema under which trigger is going to be created.
I have a table tblcustomer and a view called vworder. I need to create a trigger such that any data being added into vworder first checks if the field customerid has the data in customerid of tblcustomer.. all it has to do is spit out a error "Customer ID not found"
So I created a view such as
Quote: create or replace TRIGGER trig_order
BEFORE INSERT OR UPDATE ON vworder
FOR EACH ROW
DECLARE
cust_id VARCHAR2(20);
BEGIN
SELECT customerid INTO cust_id FROM tblcustomer WHERE customerid = :new.customerid;
EXCEPTION
WHEN NO_DATA_FOUND THEN
Raise_application_error(-20000, 'Customer ID Does Not Exist');
END;
But it comes with error
Quote: ORA-25001: cannot create this trigger type on this type of view 25001. 00000 - "cannot create this trigger type on views" *Cause: Only INSTEAD OF triggers can be created on a view. *Action: Change the trigger type to INSTEAD OF.
I am not an expert at all and I need to finish this today itself.
Having trouble creating a trigger to populate another table.
The SQL:
CREATE OR REPLACE TRIGGER "P_M_YES"
AFTER INSERT OR UPDATE ON DOMAIN
REFERENCING NEW AS NEW.P_M AND OLD AS OLD.P_M
FOR EACH ROW
WHEN (NEW.P_M = YES)
BEGIN
INSERT INTO PAGE_MAKER VALUES(:NEW.D_NAME, :NEW.USER_ID);
END P_M_YES;
/
ALTER TRIGGER "P_M_YES" ENABLE
/
I get an invalid trigger specification.
I've been assigned a task at work that consists of creating a trigger on a table. This table is used to store temporary query results. I'm trying to make a trigger to clean the table so old results don't accumulate.
There is a column named DATE_UPDATED that stores an Oracle Date for when the row was inserted/updated. If the row is not updated in 12 hours, I want to delete it.
Here is what I have so far.
CREATE OR REPLACE TRIGGER clean_tableName
AFTER INSERT OR UPDATE
ON tableName
BEGIN
END clean_tableName;
As you can see, I don't have an actual function body yet. What would be the best way to accomplish this? Should I declare a variable to store the current Date+12 hours and then just compare that in a delete statement?
I'm thinking something like:
DECLARE
laterDate DATE := SYSDATE+12; // Not sure how to add 12 hours to a date.
BEGIN
DELETE FROM tableName WHERE DATE_UPDATED > laterDate;
END clean_tableName;
But I'm not sure how to add 12 hours to the current date. Is there a way I can do this without defining a variable?
I have a question. If i insert some values to a table and then write a create statement. But if the create statement gives me error (eg: table name already exist). And without commiting if i come out the session will the insert commit?
View 9 Replies View RelatedI am new to PL/SQL and how to create a trigger to compute the population of the school from the groups of students and store back in population. It also needs to check that there is a min of 10 students to a school.
CREATE OR REPLACE TYPE group_type AS OBJECT
(
group_nameVARCHAR2(20),
tutor_idNUMBER(5),
[code]...
When i try to create a trigger , i ended up with error.
SQL> create or replace
2 TRIGGER LOGON_TRG AFTER LOGON ON DATABASE
3 BEGIN
4 INSERT
5 INTO
6 user_audit_log
7 SELECT
8 user#,
[code]....
Warning: Trigger created with compilation errors.
SQL>
SQL> show error
Errors for TRIGGER LOGON_TRG:
LINE/COL ERROR
-------- -----------------------------------------------------------
2/5 PL/SQL: SQL Statement ignored
17/17 PL/SQL: ORA-00942: table or view does not exist
The command used to resolve the error is
GRANT SELECT ON v_$session TO jack;
Jack user has sysdba privilege. My question is 'sysdba' is a super and special user which has all the privileges in database. Then why does it need SELECT privilege on v$session to user to create the trigger?
I executed the following statements
SQL> CREATE OR REPLACE Function test
2 ( name_in IN varchar2 )
3 RETURN number
4 IS
5 cnumber number;
6
7 cursor c1 is
[code]....
how I can view the full statement of creating the function.
I know this is an old thread and I just started working with triggers. I want to check if the data being inserted is already in the table and if not insert it:
create or replace trigger t_triggername
before insert on tbl_tablename
for each row
begin
if(:new.user_id <> :old.user_id) then
insert into tbl_tablename(user_id, location)
values (:new.user_id, :new.location);
end if;
end;
what if I wanted to keep the user but only update location if the user is already in the table. I've tried doing it this way:
create or replace trigger t_triggername
before insert on tbl_tablename
for each row
begin
if(:new.user_id <> :old.user_id) then
insert into tbl_tablename(user_id, location)
[code]...
i need a trigger with alter commands to alter the table structure,it will be captured in a separate meta data table(META)
CREATE OR REPLACE TRIGGER meta_alter AFTER Alter ON SCHEMA
BEGIN
update meta set column_name=:new where table_name=ora_dict_obj_name column_name=:old;
END;
/
Meta table contains Table name and column name..i attached the table data in atext file
I have created the below trigger in Oracle to ensure that a value in a table remains at 180 but I need to restrict this to one row in this table. Is there a way to use an IF statement or a where clause of some type for a particular row in that table? The Row is called ADMIN. Triggers weren't covered in my course so only know a few basic statements.
CREATE OR REPLACE
TRIGGER DAYSAGO_trg
BEFORE UPDATE ON days_ago
FOR EACH ROW
BEGIN
:NEW.days_ago := 180;
END;
I have written trigger to satisfy the requirement, when i write row level it comes out with mutating error on table which is very obvious, i have change it to statement level which is fine but it doesn't satisfy the requirement.
I want to capture the id column , which rows got inserted or updated .
Is there any way to get the newly inserted or updated rows as in case of row level i can get it form :new.id.
is it possible to add condition in statement level trigger
CREATE OR REPLACE TRIGGER insert_trigger after
INSERT ON Table when condition--- or any condition like.
how we use in row level trigger
I have a table which contains data of all calcualted payements for a Land for a particular period i.e. for a Land 124 for the duration of Jan-2010 to Mar-2010 100 rupees rent is paid to the owner.Requirement here is that for a particular duration i.e is for Jan-2010 to Mar-2010 system calculation of rent for a land file multiple times where the table would contain history of each transaction i.e. a user can calculate for a Land 124 for duration fo Jan-2010 to Mar-2010 rent more than ten times and there would be ten records in the table but only one record out of these would be valid where the user cannot calcualte rent for Lnd 124 for Jan-2010 to Mar-2010 without updating the status of the last record in the table for the same land and duration to invlaid. I want to add this business validation through triggers as i am not able to do so through check constarinst.I want to ensure that only one record should be valid for a particular land for a particular duration since row level triggers do not allow us to query the table ion which the trigger is executing i am trying to use statement level trigger but i have a few doubts here: Incase of a Before Insert statement level trigger does the trigger have access to the data which is being inserted into that the table cause whenever a record is being inserted into a table the systen would check through the trigger that if there is a valid (payment_status is valid) payment record in the table for that same land file and same duration.If there is a valid record then the trigger would through an exception. I know you can use a row level trigger with an autonomous transaction should work wihtout giving the mutating table error issue but i wont to know if using a statement level trigger here is feasible!!
View 11 Replies View RelatedI need to find out the exact DML statement which invoked a particular trigger inside a trigger body.
View 7 Replies View Relatedwhat is the difference between after or before insert in row level trigger and statement level trigger.
View 3 Replies View RelatedIn a trigger(on update of a table t1) I am trying to write, I am doing an insert on t2 accessing ':new' values of the update on t1.
But in my Insert statement, I am having get one of the column values from another table. How can I write my insert statement in such a way as to insert values contained in ':new' pseudo columns and a select from another table. Below is my insert statement in the trigger :
-------
IF (:old.GROUP_YELLOW <> :new.GROUP_YELLOW) THEN
INSERT INTO TEST.W_THRESHOLD_LOG
(THRESHOLD_LOG_WID, CHANGE_DATE, MEASURE_TYPE_WID, MEASURE_NAME, CUSTOMER_WID, CUSTOMER_NAME, USER_ID, CHANGED_ITEM, PREV_VALUE, NEW_VALUE)
VALUES(TEST.W_THRESHOLD_LOG_SEQ.NEXTVAL, SYSDATE, :new.MEASURE_TYPE_WID, 'Rolling Stabilty' , :new.CUSTOMER_WID, 'Customer1', 'User1', 'GROUP_YELLOW', :old.GROUP_YELLOW , :new.GROUP_YELLOW);
END IF;
-------
In the above code if the hardcoded value 'Customer1' need to be picked from another table,
i.e .
SELECT NAME FROM W_CUSTOMER_DIM WHERE CUSTOMER_WID = THRESHOLD.CUSTOMER_WID
how can I rewrite my query to the above value from the select into my insert statement..?
I'm having a problem with the When-timer-Expired trigger.I am creating a timer on the On-Error trigger of the block. in the when-timer-expired :
message (11); exit_form(no_validate);
If i run the program program for the first time,message 11 doesn't show thus it doesn't fire the when-timer-expired trigger. But if i logout from application server and enter all over again,the when-timer-expired works !
HOW to use variable P_TMPLID in following statement
TYPE typ_unrecon IS TABLE OF REC_' || P_TMPLID ||'_UNRECON%ROWTYPE index by binary_integer;
because its throwing error while compiling
and also in statement
FORALL i IN unrecondata.FIRST .. unrecondata.LAST SAVE
EXCEPTIONS
--STRSQL := '';
--STRSQL := ' INSERT INTO REC_' || P_TMPLID ||'_UNRECON VALUES ' || unrecondata(i);
-- EXECUTE IMMEDIATE STRSQL;
INSERT INTO REC_' || P_TMPLID ||'_UNRECON VALUES unrecondata(i);---throwing error on this statement
commit;
--dbms_output.put_line(unrecondata(2).TRANSID);
EXCEPTION
How can "call one trigger of item in trigger of form"
View 5 Replies View RelatedIn the following merge statement in the USINg clause...I am using a select stament of one schema WEDB.But that same select statement should take data from 30 schemeas and then check the condition below condition
ON(source.DNO = target.DNO
AND source.BNO=target.BNO);
I thought that using UNIONALL for select statement of the schemas as below.
SELECT
DNO,
BNO,
c2,
c3,
c4,
c5,
c6,
c7
[code]....
I am using JDBC to run a few queries from my Java program (multi-threaded one).I am facing an issue where a select statement is blocking a delete statement. From the java code point of view, there are 2 different threads accessing the same tables (whith different DB connection objects).
When the block occurs (which i was able to find out from the java thread dump that there is a lock on oracle), the below is the output:
SQL> SELECT TO_CHAR(sysdate, 'DD-MON-YYYY HH24:MI:SS')
2 || ' User '||s1.username || '@' || s1.machine
3 || ' ( SID= ' || s1.sid || ' ) with the statement: ' || sqlt2.sql_text
||' is blocking the SQL statement on '|| s2.username || '@'
4 5 || s2.machine || ' ( SID=' || s2.sid || ' ) blocked SQL -> '
6 ||sqlt1.sql_text AS blocking_status FROM v$lock l1, v$session s1, v$lock l2 ,
7 v$session s2,v$sql sqlt1, v$sql sqlt2
8 WHERE s1.sid =l1.sid
9 AND s2.sid =l2.sid AND sqlt1.sql_id= s2.sql_id
AND sqlt2.sql_id= s1.prev_sql_id AND l1.BLOCK =1
10 AND l2.request > 0 AND l1.id1 = l2.id1 AND l2.id2 = l2.id2;
[code]...
From the above it can be seen that a select statement is blocking a delete. Unless the select is select for Update, it should not block other statements is not it ?
If i inserted the values in table it gets inserting very few rows only.I dont know y it is?
View 15 Replies View RelatedCan we call trigger in another trigger,if it is possible any example.
View 1 Replies View Relatedcreating an ASM instance. I've never done this before and searched all known documentation. I just can't seem to figure this out. This is an 11g database on a WinXp machine for testing purpose before attempting to do this on a live production environment
D:\app\user\product\11.1.0\db_1\BIN>localconfig add
Step 1: creating new OCR repository
Successfully accumulated necessary OCR keys.
Creating OCR keys for user 'Dummy\user', privgrp '
Operation successful.
Step 2: creating new CSS service
Failed to create the new CSS service, err(5)
failed to create CSS services
I have created a sequence and I would like to create a surrogate key in one of my tables that will take the values of the sequence. I searched for hours but couldn't find any example of how to do that.
View 1 Replies View RelatedIf iam create a new role in scott/tiger user why not creating. can any one explan me.
SQL> create role test_role;
create role test_role
*
ERROR at line 1: ORA-01031: insufficient privileges