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 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]...
can you use alter table command to disable/enable constraints in a form if you can how, if you cant why
View 4 Replies View RelatedI created a DDL trigger which manipulates columns of a table after an "alter table" statement.
For us this was all the time
"alter table XXX add NEW_COL varchar2(20)"
or
"alter table XXX modify NEW_COL varchar2(20)".
Unfortunatly we have now a requirement which statements "alter table XXX drop NEW_COL varchar2(20)".
My trigger works fine - you see no problem directly after statement execution but the table is then in an invalid status.
The connection will be destroyed after you tried to see the data of this table.
Also the export (creating a dump) will not work.
The problem I see is that I the database will do a "modify" on a column which has internal the status "dropped".
How I can get the information what kind of alter table statement will be executed?
Or is there any chance to select only columns from USER_TAB_COLUMNS without the "dropped" flag?
create or replace trigger TRIGGER
after alter
on SCHEMA
declare
vCharSet NLS_DATABASE_PARAMETERS.VALUE%TYPE;
begin
-- Select all columns of a table
select COLUMN_NAME, DATA_TYPE, DATA_LENGTH
from USER_TAB_COLUMNS
where TABLE_NAME = vTABLE_NAME; ...
-- Loop for all columns from our select
...
vSTATEMENT := 'alter table ' || vTABLE_NAME || ' modify ' || VOBJECTREC.COLUMN_NAME || ' ' || VOBJECTREC.DATA_TYPE || '(' || vNEW_DATA_LENGTH || ')';
--For example:
-- alter table XXX modify NEW_COL varchar2(20)
execute immediate vSTATEMENT;
exception
...
end;
/
I have created different scripts to monitor growth planning of the database my idea was generate a simple output file to a directory and create a report and send it as mail thru mail server. but the client requested me to create new schema and population all the stats i have collected into the tables in this schema .
How to pool all the stats from different databases into this new schema efficiently.
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.
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 need to import some data from .csv files. There is one file each day, so I want them to be automatically imported into the DB. This is the format it comes in:
DSM,LOD,20120524,01,01,9999AMP02,1.1262240,M,0.6397380,M
DSM,LOD,20120524,01,02,9999AMP02,1.1315700,M,0.6450840,M
DSM,LOD,20120524,01,03,9999AMP02,1.1297880,M,0.6450840,M
I want this data to go into TEMP_TABLE. It then needs to reformatted as it goes from temp_table to my_table:
filename,readingID, field1,field2,date,num1,num2,meterid,read1,m1,read2,m2
so filename is the actual name of the .csv file that this row came from. And reading id is date, num1, num2, meterid combined. And the remaining fields coming from temp_table
This is what I have:
procedure import_data()
begin
TEMPFILENAME CHAR(60)='DSM_2010_Husky_Oil_20120525064122_20120525065011.csv';
create table temp_table
(dsm char(3),lod char(3),usage_date date,he char(2),reading char(2),loc_id char(9),mwh number(15,10),eormmwh char(1),mvar number(15,10),eormmvar char(1));
[code]....
, which does not work at all.
I do below alter command
alter tablespace RCA_MB_IDX add datafile '/gxsdb/database/oradata5/RCA/RCA_REF_MB_IDX_01.dbf ' size 1024M
But there is extra space in the file location '/gxsdb/database/oradata5/RCA/RCA_REF_MB_IDX_01.dbfX'
I mark X for that space ...
The command is commit .
But there is problem when do backup .
how I can create an index dynamically? The DBA wants me to put this code below in the beginning of a PL/SQL package. At first, I tried by just putting the below syntax in the code, but I get an 'Alter' is not a valid identifier.
alter index ZZAP_selected_invoices_n1 rebuild online;
And then once the job completes...
alter index ZZAP_selected_invoices_n1 unusable;
I do below alter command alter tablespace RCA_MB_IDX add datafile '/gxsdb/database oradata5/RCA/RCA_REF_MB_IDX_01.dbf ' size 1024M
But there is extra space in the file location '/gxsdb/database/oradata5 RCA/RCA_REF_MB_IDX_01.dbfX' I mark X for that space ...
The command is commit .
But there is problem when do backup ...as the file cannot be find since there is extra space after ".dbf" How can I fall back ?
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.
1. I am inserting a value to a table.through uploading the csv file to the DB table using apex.
2. After the data get inserted into the table(parent),my data should be copied to the another table with some conditions .
3. Is it possible to write a trigger to insert statement from selecting the values from another table.
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 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.
I am trying to upgrade my database approx 20GB size from 8.1.7.2.1 to 8.1.7.4 runningon windows NT 32bit server.I found that we can download from metalink.oracle.comIs that any cost involved in downloading and installing or is it provided freely by Oracle.
View 7 Replies View RelatedI'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?
What is the difference between alter session and alter system?
View 2 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]...
I would like to create a trigger on a table which populates a log table. In addition to using the table where the trigger will exist, I would like to populate a couple more fields in the log table with with data from 2 other tables.
e.g.
NAME_TABLE
-reg_id
-name
ADDRESS_TABLE *trigger to be fired when a new record is created here.
-reg_id
-srv_id
PROCESS_TABLE
-srv_id
-start_time
-end_time
This is what I would like the logging table to look like:
LOGGING_TABLE
-address_table_reg_id
-address_table.srv_id
-name_table.name
-process_table.start_time
-process_table.end_time
How can I go about creating this type of trigger?
if a user have alter table gant but could not alter .. what additional grant it need
SQL> alter table HRS_PERS_FIELDS_INC modify(PER0000252 NUMBER(19,3));
alter table HRS_PERS_FIELDS_INC modify(PER0000252 NUMBER(19,3))
*
ERROR at line 1:
ORA-00942: table or view does not exist
I have a table with usernames and passwords. The passwords are stored in plaintext. I would like to issue an ALTER command on the password field to store a hash instead, and then repopulate those fields with an encrypted version of the plaintext passwords that were there before.
I would prefer to do this in a procedure, as I am going to perform it in a test environment first, then eventually in the production environment.
I have a table PR in that some data is there for instance, My Mr_NO was Char(11) I modify MR_No to Char(13)My Table Structure now is:
MR_No Char(13),
Mr_Date Date
My Previous data is MR_NO=APN00209085
I want to add two 00 after alter the table I want my result data like APN0000209085.I am updating through this command
update PR set Substr(MR_No,4,2)='00'
ERROR at line 1: ORA-00927: missing equal sign
Result I want is APN0000209085
I need to Modify the column(MSGID) data type from RAW to BLOB for a Queue Table, I'm getting the following error.
BANNER
---------------
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
PL/SQL Release 11.2.0.2.0 - Production
CORE11.2.0.2.0Production
YUV >
YUV > DESC PDA_REPORT_MESSAGE_QTAB
Name Null?Type
----------------------------------------------------- -------- ------------------------------------
Q_NAME VARCHAR2(30)
MSGID NOT NULL RAW(16)
YUV >
YUV >
YUV > ALTER TABLE PDA_REPORT_MESSAGE_QTAB MODIFY (MSGID BLOB);
ALTER TABLE PDA_REPORT_MESSAGE_QTAB MODIFY (MSGID BLOB)
*
ERROR at line 1:
ORA-22858: invalid alteration of datatype
YUV >
YUV >
YUV >
YUV >
YUV > ALTER TABLE PDA_REPORT_MESSAGE_QTAB ADD (MSGID_NEW BLOB);
ALTER TABLE PDA_REPORT_MESSAGE_QTAB ADD (MSGID_NEW BLOB)
*
ERROR at line 1:
ORA-24005: Inappropriate utilities used to perform DDL on AQ table PDADBA.PDA_REPORT_MESSAGE_QTAB
YUV >
I want to alter a very large table.
ALTER TABLE MYTABLE ADD
(
ENTRY_TSTMP DATE DEFAULT SYSDATE NOT NULL
)
My table is very large and I am getting an error saying I am out of undo space.
The dba says the undo space is as big as the table.
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
PL/SQL Release 11.1.0.6.0 - Production
"CORE 11.1.0.6.0 Production"
I altered existing table EVENT_SUB - added 3 columns. After that, I noticed all the procedures which had mention of this table name went in INVALID status, even if its simple SELECT, ALTER OR INSERT as shown below..
SELECT * FROM EVENT_SUB
OR
INSERT INTO EVENT_SUB...
OR
ALTER TABLE EVENT_SUB
WHERE....
So I had to recompile all the procedures associated with it. Is there any other ways to achieve this, like a line of code to add in the procedure itself, right after this DDL statements.
Sometimes i use this:
select object_name, object_type from all_objects where owner='TOYCOM' and status='INVALID'
Then, I would simply recompile the invalid objects.
For indexes, i do...
alter index <name> rebuild;
BTW, I did try to preview message, and then click on Create Topic, it gave me error..again.
"A system error has occurred.
I ran the following PL/SQL Code & I am getting the following Error:
Drop table MODIFIEDTABLE
/
Commit
/
create table MODIFIEDTABLE(TABNAMES varchar2(100))
/
DECLARE
[code].....
RESULT:
Table dropped.
Commit complete.
Table created.
DECLARE
*
ERROR at line 1:
ORA-01735: invalid ALTER TABLE option
ORA-06512: at line 12
how to play around with NDS dynamic sql and I'm trying to add a column on the fly.Basically the procedure is trying to take a table name, column name, and eventually a data type and adds it to a table.
It works fine without the bind variable for the column name, accepting the table name on the fly.As soon as it tries to use the column name I get an ORA-00904 invalid identifier exception.
Here is the procedure I'm using
CODEcreate or replace
procedure test(tbl_name varchar2, col_name varchar2) IS
qry varchar2(500);
begin
[code]....
Here is how I'm executing it.
CODEexecute test(tbl_name => 'BB_SHOPPER', col_name => 'MEMEBER');
SQL> ALTER SESSION SET CURRENT_SCHEMA = CLA_T3;
Session altered.
SQL> select sys_context('USERENV','SESSION_USER') current_user,
2 sys_context('USERENV','SESSION_SCHEMA') current_schema
3 from dual
4 ;
CURRENT_USER
--------------------------------------------------------------------------------
CURRENT_SCHEMA
--------------------------------------------------------------------------------
CSR_ETL
CLA_T3
SQL> set linesize 300;
SQL> /
CURRENT_USER
----------------------------------------------------------------------------------------------------
CURRENT_SCHEMA
----------------------------------------------------------------------------------------------------
CSR_ETL
CLA_T3
SQL> create table cla_t3.test (r number, b char(2));
create table cla_t3.test (r number, b char(2))
*
ERROR at line 1:
ORA-01031: insufficient privileges
SQL> create table test (r number, b char(2));
create table test (r number, b char(2))
*
ERROR at line 1:
ORA-01031: insufficient privileges
After Setting current schema to 'CLA_T3', I am unable to create table in cla_t3 schema.