I have 2 tests Oracle instances (a 10g and a 11g) in which somebody added many users (almost 50k), every user having a TEST table with no rows in its schema.
I have to drop these users without recreating the instances, but DROP USER username CASCADE is taking almost 1 minute for each user. This will take me to almost a month.
I need to install Oracle Data Provider for NET (and all depending Oracle client SW components) in multiple client machines.
Exist any other options (faster) without installing oracle client on each of the machines?
efficient & fast method for Audit trailing tables in a Schema for any insert /update /deletes for a table. I do not want to use db triggers because of performance issues.
presently we have as system which does audit trail as below:
1. If a user changes a column value for a table ( update/insert/delete) then we call a db package and pass the parameters like table name,col name,user, operation (ins/update/delete),old value, new value,date modified,user modified etc
2. the called package will insert a record in the audit trail table with the parameters passed
3. The audit trail table is used for report generation .
We have a requirement to update one column as given in the below mentioned pl/sql block.The challenge is to update the a large volume of data every day.Generally this kind of one to one update will takes long time (45 min approxmately) We need a solution that will be able to update 10 million records in few minutes.
begin
for i in (select t3.event_id, t1.header_id from
table_1 t1, table_2 t2, table_3 t3
where t1.header_id=t2.header_id and t2.entity_id = t3.entity_id)
loop
update table_1 set event_id = i.event_id
where header_id =i.header_id;
end loop;
commit;
end;
NOVALIDATE CONSTRAINT METHOD.
Below is the step i gone through:
1) CREATE TABLE mutu (id NUMBER, text VARCHAR2(20));
2) INSERT INTO mutu SELECT rownum , 'mutu' FROM dual CONNECT BY LEVEL <= 10000;
3) Insert Duplicate row.
INSERT INTO mutu VALUES (42, 'DUPLICATE');
4) COMMIT;
5)Create a NON-UNIQUE INDEX's CONSTRAINT as below.
ALTER TABLE mutu ADD CONSTRAINT mutu_pk PRIMARY KEY(id)
USING INDEX(CREATE INDEX mutu_pk ON mutu(id)) ENABLE NOVALIDATE;
6) Insert Duplicate row.
INSERT INTO mutu VALUES (42, 'DUPLICATE');
7) ERROR at line 1:
ORA-00001: unique constraint (SYS.ZIGGY_PK) violated
Why it shows the error. Even though I had created a NON-UNIQUE INDEX's Constraint only.
I have three table for the stock calculations. The structure are like this
Product_master
product_id number,
product_name varchar2(30),
company_id number(3),
rate_per_unit number(14,4)
Purchase_master
trans_date date
product_id number,
company_id number(3),
quantity number(14,4),
rate_per_unit number(14,4)
Sales_master
trans_date date
product_id number,
company_id number(3),
quantity number(14,4),
rate_per_unit number(14,4)
Purchase_return_master
trans_date date
product_id number,
company_id number(3),
quantity number(14,4),
rate_per_unit number(14,4)
Sales_return_master
trans_date date
product_id number,
company_id number(3),
quantity number(14,4),
rate_per_unit number(14,4)
I need to find out the valuation on particular sales date at FIFO method.
i got a table and it had 5000 rows of data...ive deleted around 2000 to decrease the db size but i have no success. My harddrive is still showing the same size with no increase in mb.
I've looked at shrink etc methods but some are not compatible with 8i.
I take it the db is still reserving that those deleted rows thinking it may be used again which is the reason for no increase in space.
Question:
How to find out the status of the import job(how much work is done, ETA), i have started the job few days back it still running on the server. i am using import not datapump, because i got the dump which took with export. DB version is 11.2.0.2.0
for datapump i know i can use the following queries, but these are not giving any output l think these are only for datapump
select sid, serial#, sofar, totalwork from v$session_longops;
select sid, serial# from v$session s, dba_datapump_sessions d where s.saddr = d.saddr;
Which Oracle access method is the fastest way for Oracle to retrieve a single row?
a) Primary key access
b) Access via unique index
c)Table access by ROWID
d)Full table scan
I have a table :
Product
A
B
C
D
and I was wondering if there is a quick method of populating it with calendar data so it would look like the following:
Product Year Month
A 2008 Jan
A 2008 Feb
A 2008 Mar
A 2008 Apr
A 2008 May
A 2008 Jun
A 2008 Jul
A 2008 Aug
A 2008 Sep
A 2008 Oct
A 2008 Nov
A 2008 Dec
A 2009 Jan
A 2009 Feb
Etc.
This would be done for all products for 4 years.
I have installed oracle 10g in D drive .
The instalation says it is succeessful, without asking the database name or the password .
I have followed the steps given in the attached file .
However it is not asking the databse name or password ( no configuration set up is appearing for the user to interact with the system ) .
So, after installation I can not give the username and password .
The tnsnames.ora file is given below
# tnsnames.ora Network Configuration File: D:DevSuiteHome_1
etworkadmin nsnames.ora
# Generated by Oracle configuration tools.
[Code]....
The files from where I installed is ds_windowx86 disk1 and disk 2.
I have a form of a user feedback with SMS Sending. which I gave to my all clients when ever my any client enter a feedback they press send SMS button so I got SMS if they press the button 2 times I got 2 same sms and if press the button 3 times I got 3 same sms and so on I want to restrict them and allow them to send only 2 sms of that feedback.any method on WHEN-BUTTON-PRESSED Trigger.
View 7 Replies View RelatedIs it possible to solve an equation with the newton-raphson method with sql?
I have an equation f(x)=1-a/x**2, f(x)'= 2a/x**3
and want to solve x for several a's
The newton-raphson methos uses the derivation as next approximation:
xn2 = xn1 - f(x)/f(x)'
The result should be like this:
create table temp_res (a integer, res number);
insert into temp_res values(1, 1);
insert into temp_res values(2, 1.41421288939285);
insert into temp_res values(3, 1.73205078513617);
insert into temp_res values(4, 1.99999999999617);
insert into temp_res values(5, 2.23606797658102);
insert into temp_res values(6, 2.4494897130809);
insert into temp_res values(7, 2.64575095945042);
insert into temp_res values(8, 2.82842712474403);
DB: 11.2.0.3 & OS: RHEL5 Easy Connect Naming method enhances the host naming method by allowing for a port and service specification. My question is does Oracle 11g support Host naming method?
View 4 Replies View RelatedOur Audit Company has given us a recommendation:"Old DB Link encrypted Passwords: The password of the Oracle databases links are encrypted using DES (password starts with 05). This encryption methord is known and users can decrypt the passwords using a simple SQL query. Please recreate the database links to use the new encryption method (password starts with 06)."What does it mean and how can we perform this recommendation?
View 2 Replies View RelatedI tried to convert rows to columns using the pivot method.But i am not able to do that.This is what i tried:
SQL> desc pt
Name Null? Type
----------------- -------- ------------
NAME VARCHAR2(10)
YEAR NUMBER(4)
VALUE NUMBER(4)
[code]....
As you can see from the above output i am not getting as expected.
Expected output:
YEAR JOHN JACK MARY
---------- ---------- ---------- ----------
1993 3000 1340 8700
1991 1000 1500 1250
1992 2000 1200 2323
Our application has been installed at customers in North America, Europe and South America for several years, in some cases, over 10 years. At least one of our customers has hundreds of gigabytes of data. We are considering options for cleaning out the old data.
The database runs on a variety of systems (Linux, Windows, Unix) and in several version (Oracle 9, 10, and 11). We need a solution that works in all environments.
Two of our main criteria for a successful solution are that:
-It maintains application data referential integrity. Our application makes little use of foreign key constraints, so the cleanup process will apply critical business rules to candidate data to determine if it can be deleted or not.
-The operation of the cleanup program does not impact use of the system in production.
For various reasons (license cost, installation issues) the partitioning option is not available to us.
Alternative 1: Flag records for cleanup
This requires adding a 1-character column to each table. That is a one-time operation done during implementation. The procedure applies the business rules and sets the flag according to whether a row is to be deleted or not. Rows marked for deletion can be checked, reset, exported, etc. Finally, a separate process deletes all marked rows.
Advantage of this is that the deletion process will use a full table scan to find the marked records. There is no index navigation, so hopefully less overhead. Disadvantage is that its updating application data which might affect user's perceived system response. There is some undefined concern that locking or other table activity involved with updating the flags could impact users.
Alternative 2: Build a list of keys for data to be deleted
We will build a list table during implementation. The first process examines the application data, applies the deletion rules and writes key information to the list for data that can be deleted. The list can be checked, reset, rebuilt and listed rows can be exported as required. Finally, the cleanup process uses the list to find and delete the data.
Advantage is that it doesn't update the application data as its building the list. Disadvantages are that it that there is some overhead in building and checking the list. The list requires more space than the flags in alternative 1 but we can handle that in various ways. The procedure needs to navigate key structures during the delete step as well as in the list-building phase.
The best way to rebuild index and table and also give the reason as why we need to use this method?
View 10 Replies View RelatedWhen we want to gather schema statistics which method we should follow and why ?
exec dbms_utility.compile_schema('SHIKHAR');
or
BEGIN
SYS.DBMS_STATS.GATHER_SCHEMA_STATS (
OwnName => 'JACK'
[Code].....
I am using Oracle 11.1.0.7.0 version and UNIX-Hp OS.
which export/import method should i use when i am to do export/import... like table level, tablespace level ,full database level, schema level?
1.Datapump or
2.Traditional export/ import ?
I am trying to use oracle wallet with the new odp.net managed driver, but I am getting
"invalid username/password".
As the wallet itself is ok (it works with the unmanaged client), seems to me that this new provider is not fully compatible with Oracle Wallet. Is this true? I am trying this:
<oracle.manageddataaccess.client> <version number="*"> <settings> <setting name="tns_admin" value="D:oracleproduct11.2.0client_1
etworkadmin" /> <setting name="WALLET_LOCATION" value="D:oraclewallets" /> </settings> </version> </oracle.manageddataaccess.client>
Any success using the sys.anydata.ConvertClob member function when trying to insert data into a Anydata column? This function has been listed in Oracle documentation since 9i, but even in 11G I get the error :
ORA-22370: incorrect usage of method AnyData Insert.
Code is pretty straight forward using a CLOB column in a after insert trigger :
Insert into TRACE_DETAIL(OBJ_ID, COLUMN_ID, OLD_VALUE, NEW_VALUE) values (logId, 73, null, sys.anydata.convertClob(:NEW.Req_Data));
We have oracle 9i database named A with 2 schema A1 and A2.User enters data at A1 schema and the incremental data moved to A2 schema after some verfications performed by some scheduled job on A1 schema.
we want to move this incremental data to B1 schema of another oracle 9i database B at the real time when data gets entered to A2 schema of A oracle 9i database. We have access to A2 schema of A database and B1 schema of B database.way to do it or best practice to do this activity or if there is any third party tool or any available oracle utility to perform it?
Note: A2 schema of A database and B1 schema of B database has one to one mapping.We want to avoid using trigger on A2 schema, how data gets populated from A1 to A2 schema .
I am interested about the fast way to access all data in physical block. what is the quick way to bring data blocks using the rowid, I found this script but soon as I can have faster access:
select * from table_name t
WHERE ROWID between 'AAAUaOAAEAAHkJiAAA' and 'AAAUaOAAEAAHkJiAA8';
where 'AAAUaOAAEAAHkJiAAA' is the last element in the block and 'AAAUaOAAEAAHkJiAA8' is the first one
my question is can retrieve all the data in one block more quick than this query.
i have created a fast refresh materialized view but it is not performing fast refresh or even complete refresh.Then i have checked my materialized view capabilities then in mv_capabilities_table i got a message that materialized view log is newer than old .
View 2 Replies View Relatedi have three tables and all of these tables have around 30L records.
Using join i am retrieving records from these tables but it is taking much more time to get output.
Partition can improve performance?
I have a table with around 650,000,000 rows and we need to delete about 60,000,000 rows at the end every month and same amount of rows accumulate throughout the month. The deletion usually takes overnight to delete. We are using 10r2 in IBM AIX. The procedure we are using to delete is:
declare
ln_count number:=0;
begin
for i in (select rowid from table1 where some_id<2012090000)
loop
delete from table1
[code]...
When this procedure is started I mostly see that the session is busy in user i/o wait for db sequencial file read. Will using cursor instead will give better results.
I have analyzed that, datapump estimation is 9.902GB. When i check size of .dmp file, it's shows 1.44Gb.
Export: Release 11.2.0.1.0 - Production on Fri Apr 5 02:00:05 2013
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
;;;
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Starting "SYSTEM"."SYS_EXPORT_FULL_01": system/******** dumpfile=expdp_LVGITRN_30_24_050413.dmp directory=DP_DIR logfile=expdp_LVGITRN_30_24_050413.log full=y exclude=statistics
Estimate in progress using BLOCKS method...
Processing object type DATABASE_EXPORT/SCHEMA/TABLE/TABLE_DATA
Total estimation using BLOCKS method: [bold]9.902 GB [/bold]
Why Datapump estimate so much than actual size?
why we pass null as a argument in any method parameter....What is its use in method reference..
View 1 Replies View RelatedI'm trying to build up a materialized view with aggregate and FAST REFRESH for INSERT and UPDATE, DELETE with no success. But the web doesn't deny it ?
--build up needed schema objects
CREATE TABLE empt
( ename VARCHAR2(20),
empno INTEGER,
[Code]....