DUPLICATE: NEED TO "DROP DATABASE" BEFORE REFRESH OR CAN REMOVE DATAFILES

I have TARGET and AUX, i need to REFRESH my AUX, so the question is:
i need to "DROP DATABASE" or just REMOVE DATAFILES, CONTROLFILES, REDO LOGS?
Sure, i will create new INIT.ORA , etc...
Cheers

Either command will do.
Hemant K Chitale

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hi,
Even i am new to oracle application server and had the same doubt that you have.
When you install Application Server there would be two tiers installed, application tier and middle tier, these tiers can be running from the same machine or different machines.
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Hey guys,
This is part powershell app doing a SQL insert. BUt my question really relates to the SQL insert. I need to do a check of the database PRIOR to doing the insert to check for duplicate records and if it exists then that record needs
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Hi
Since SQL Server 2000 has been out of support, I recommend you to upgrade the SQL Server 2000 to a higher version, such as SQL Server 2005 or SQL Server 2008.
According to your description, you can try the following methods to check duplicate record in SQL Server.
1. You can use
RAISERROR to check the duplicate record, if exists then RAISERROR unless insert accordingly, code block is given below:
IF EXISTS (SELECT 1 FROM TableName AS t
WHERE t.Column1 = @ Column1
AND t.Column2 = @ Column2)
BEGIN
RAISERROR(‘Duplicate records’,18,1)
END
ELSE
BEGIN
INSERT INTO TableName (Column1, Column2, Column3)
SELECT @ Column1, @ Column2, @ Column3
END
2. Also you can create UNIQUE INDEX or UNIQUE CONSTRAINT on the column of a table, when you try to INSERT a value that conflicts with the INDEX/CONSTRAINT, an exception will be thrown.
Add the unique index:
CREATE UNIQUE INDEX Unique_Index_name ON TableName(ColumnName)
Add the unique constraint:
ALTER TABLE TableName
ADD CONSTRAINT Unique_Contraint_Name
UNIQUE (ColumnName)
Thanks
Lydia Zhang

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Hi DBA's ,
I ran into a strange situation i never faced before.
We have a Oracle database version 11.2.0.3.0.
This is dev db which i had to refresh from production via rman.
After the drop database command finished all the contents of my trace folder dissapered including the alert log.
Has anyone faced this situation before or help me understand what happened

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How to truncate / drop database automatic?

Using: 10gR2 and "imp" and "exp" for Import/Export.
Hi.
We have a problem. We have two databases. One to test/develope and one live database.
The test/developers one was created with a full dump after settin up the developer server.
Now we want to actualize the test/developer server with the live database.
The best way would be a normal import from a full dump file which overwrites all existing data.
Now we try it with "ignore=y" (it runs longer than 6h) and it seems to append all not existing data in the test/database from the full-dump (of the live server).
Is it the only way (to have a full clone) to drop/truncate the old DB and import than the data?
Can we automate the truncating/droping before import?
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What is the easiest way to do that?
Or is there no need to drop/truncate?
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Drop database link & ORA-02082 Error

Hello,
I have created db link. Now, I would like to DROP it but I got "ORA-02082 a loopback database link must have a connection qualifier".
I have tried every possible combination but without success.
Thanks for help
sasa

Hello Barbara,
I agree with you that if db link exist I should be able to drop it. If you look into my first reply there is complete select from user_db_links. Select from dba_db_links are the same because I haven't any others db links. I try to drop the db link as owner or as sys. I do not need to think about drop with name "qwer.cscargo.cz" because is wrong (our inner domain is "in.cscargo.cz"). The only difference among others db links is that qwer have "current_user".
DB_LINK USERNAME HOST
CARGODB.IN.CSCARGO.CZ CARGO_ADM cargodb
LMDB.IN.CSCARGO.CZ CARGO_ADM lmdb
QWER.IN.CSCARGO.CZ CURRENT_USER speisdb
SPEISDB.IN.CSCARGO.CZ CARGO_ADM speisdb_rac
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Here is output of your drop script:
drop database link qwer
ERROR at line 1:
ORA-02082: a loopback database link must have a connection qualifier
drop database link qwer.cscargo.cz
ERROR at line 1:
ORA-02024: database link not found
drop database link qwer.in.cscargo.cz
ERROR at line 1:
ORA-02084: database name is missing a component
drop database link qwer@loopback
ERROR at line 1:
ORA-02024: database link not found
drop database link qwer.cscargo.cz@loopback
ERROR at line 1:
ORA-02024: database link not found
drop database link qwer.in.cscargo.cz@loopback
ERROR at line 1:
ORA-02084: database name is missing a component
drop public database link qwer
ERROR at line 1:
ORA-02082: a loopback database link must have a connection qualifier
drop public database link qwer.cscargo.cz
ERROR at line 1:
ORA-02024: database link not found
drop public database link qwer.in.cscargo.cz
ERROR at line 1:
ORA-02084: database name is missing a component
drop public database link qwer@loopback
ERROR at line 1:
ORA-02024: database link not found
drop public database link qwer.cscargo.cz@loopback
ERROR at line 1:
ORA-02024: database link not found
drop public database link qwer.in.cscargo.cz@loopback
ERROR at line 1:
ORA-02084: database name is missing a component
Thanks SASA

Sql Drop database;

Hello All:
I always used the old approach of deleting the files data,log,control prior to any database refresh using OS rm command. Currently with 11gR2 2node RAC cluster , storage on ASM i did the same successfully. Just wondering for any inputs on using SQL>DROP DATABASE; Command if anyone has used it just so i can avoid a few steps in the refresh process. Your experiences will definetely help.
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shutdown immediate;
startup mount;
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null

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Hi
Oracle RDBMS : 11.2.0.2 RAC 4-node on RHEL 5.6
What are the steps for perfoming switchover between primary and physical standby,Do we need to shutdown the primary and physical standby databases before perfoeming switchover?

951368 wrote:
Hi
Oracle RDBMS : 11.2.0.2 RAC 4-node on RHEL 5.6
What are the steps for perfoming switchover between primary and physical standby,Do we need to shutdown the primary and physical standby databases before perfoeming switchover?No but you need to shut down all but one primary database instance. then you can restart the shutdown instances after the switchover task is completed.
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Need to drop a current redo log on a Standby

Oracle 11.2.0.2
I have 3 redo logs on a newly created Standby database.
SQL> SELECT GROUP#, ARCHIVED, STATUS FROM V$LOG;
GROUP# ARC STATUS
1 YES UNUSED
3 NO CURRENT
2 YES UNUSED
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SAME ERROR/SITUATION
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alter database recover managed standby database cancel
ERROR at line 1:
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I m kinda new in RAC environment.I drop database by DROP DATABASE; but other files still left behind like in CRS repository. Here are some issues that I have to deal with:
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When you are dropping a RAC database you need to remember the layers of configuration that support that object. Or, if you don't want to peel back the layers one at a time use DBCA to simplify the process. I still use DBCA because it resolves these dependency issues for me.
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(oracle or OSDBA above this level)
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one should drop existing objects in order not to produce duplicate data. Is this valid also when one passes the 'ignore = yes' argument to the 'imp' command?when you are importing, oracle first executes ddl, like creating the object, if it found, then says already exists and then skips to the next step of import. If you say ignore=y, then, it wont display error message. Thats it.
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DUPLICATE: NEED TO "DROP DATABASE" BEFORE REFRESH OR CAN REMOVE DATAFILES

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