Create dev database from standby database

Hi folks,
I need to create a dev database by using RMAN's method of cloning. But, since it is business hours and the production database is being used at a very high rate, I cannot carryout the cloning by connecting the primary database as it may cause performance slowness.
The time allotted for the activity is also very short. We have a standby database created for the primary database. So, my question is it possible for me to create the dev database using the standby database ?
Database version is 11.1.0.6 and I can go ahead with the active database feature.

Yes, you can clone from the standby database. Follow the below steps.
1. Check if your standby database is in sync with the primary database.
2. Cancel the MRP on the standby database.
alter database recover managed standby database cancel;3. connect to standby as target database and dev database as auxiliary
rman target sys/<pwd>@<standby-alias> auxiliary sys/pwd@<dev-alias>4. Your standby database would be in mount stage and dev in nomount stage.
5. Run the duplicate command
rman>duplicate target database to 'dev' nofilenamecheck;6. Once done, start the MRP on the standby database
alter database recover managed standby database disconnect from session;

Similar Messages

How to create primary controlfile from standby controlfile?

We need to create a primary control file from a standby control file.
SQL> select name, controlfile_type from v$database;
NAME CONTROL
HPR STANDBY
Please help.
Thank you very much.

May wrote:
We need to create a primary control file from a standby control file.
SQL> select name, controlfile_type from v$database;
NAME CONTROL
HPR STANDBY
Please help.
Thank you very much.What is a problem?
You can not create controlfile from standby controlfile(Expected activate time).
And you lost controlfile?

How to create a clone of database from STANDBY?

How can i clone a database from physical standby database?

Steps to clone from standby:
1. cancle the managed recovery process on standby
sql>alter database recover managed standby database cancel;
2. Remember your standby databse would be in mount mode.
3. Connect to the auxiliary instance and to the standby database through RMAN
rman target sys/<pwd>@standby auxiliary sys/<pwd>@auxiliary-connection
4. If 11g, then run directly duplicate from active database
rman>duplicate target database to 'auxiliary_db_name' from active database nofilenamecheck;
5. Once, the duplication is done, start the MRP on the standby again
sql>alter database recover managed standby database disconnect from session;
Ok..You are on 10g.
Perform the above steps, but only thing is 1st you need to take the backup of the standby database first.
Refer this Create dev database from standby database
Already steps are given here
Edited by: Shivananda Rao on Mar 9, 2012 9:56 AM

Create test database from standby without some data

Hi. I want to create test database from my standby database using rman.
But i have some some tables and where information is too large i dont want backup all data from this tables. because i dont have enough space on my test server.
Have u any idea for solution this problem.
Thanks

But have suggestion.
You can create duplicate database on based your target database (to new host) and skip undesired tablespaces...
bash# rman target /
RMAN> ....
your code should be like :
run {
allocate auxiliary channel 'dev_0' type 'sbt_tape'
parms 'SBT_LIBRARY=/opt/omni/lib/libob2oracle8_64bit.so,ENV=(OB2BARTYPE=Oracle8,OB2APPNAME=my,OB2BARLIST=MY DAILY)';
allocate auxiliary channel 'dev_1' type 'sbt_tape'
parms 'SBT_LIBRARY=/opt/omni/lib/libob2oracle8_64bit.so,ENV=(OB2BARTYPE=Oracle8,OB2APPNAME=my,OB2BARLIST=MY DAILY)';
allocate auxiliary channel 'dev_2' type 'sbt_tape'
parms 'SBT_LIBRARY=/opt/omni/lib/libob2oracle8_64bit.so,ENV=(OB2BARTYPE=Oracle8,OB2APPNAME=my,OB2BARLIST=MY DAILY)';
allocate auxiliary channel 'dev_3' type 'sbt_tape'
parms 'SBT_LIBRARY=/opt/omni/lib/libob2oracle8_64bit.so,ENV=(OB2BARTYPE=Oracle8,OB2APPNAME=my,OB2BARLIST=MY DAILY)';
SET UNTIL SCN 7769764681915;
DUPLICATE TARGET DATABASE TO MYTS SKIP TABLESPACE TOOLS_IDX,TOOLS,ARCHIVE,IDX;
Edited by: Ulfet Tanriverdiyev on Dec 21, 2010 3:42 AM

Duplicate from standby database to create a test database?

Hello!
Would it be possible to use backup-based duplication FROM a physical standby database to create another database to be used for testing? If I performed RMAN backup of the standby database, moved the backup to another test server, and then ran duplicate?
Anyone know if this would be possible? If possible, would the new test database's controlfile be "standby" or "primary".
(version 11.2.0.2)
thanks..

Yes it works ! I've tried that recently on 10g so I think on 11g will not be a problem.
You can do it with or without duplicate. If you want to use duplicate, you don't need to copy the backup. Actually, on 11g you don't need no backup at all, since now you have 'from active database' option for duplicate command !
Also, duplicate will rebuild the controlfile so it will not be "standby" or "primary" ...
Gabriel

How do i create a database template from the command line?

Hi,
As part of implementing a backup and recovery strategy for a client (including disaster recovery) I want to automate the creation of a database template From an Existing Database (Structure as well as data) via a script that will run every night.
The background to this is that we will also be using RMAN to take backups of the database concerned but the client does not want to wait while an RMAN backup is restored and so wants an additional level of insurance in the form of a ‘standby’ clone database.
The idea is that nightly we will run a script that creates a database template from the Existing Database (Structure as well as data) and then transfers the 2 files involved e.g. DB_data_included.dbc and DB_data_included.DFB across to a standby server where they can be used to recreate the database in the event of us needing to after e.g. a complete server failure.
So I have a couple of questions about this that I would be very grateful if something could answer for me:
1)     Is it possible? That is, can a database template be created from some utility by supplying a series of parameter=value pairs on the command line?
2)     If yes how do I go about it, what utility do I use (the emca utility?). and what parameters do I need to supply on the command line to create the template?
3)     The intention is that the script to create the template will run in the early hours of the morning when no-one is using the database but what state does the database need to be in when the template creation script runs i.e. up, down, mounted and does the creation of a template affect the state of an already up database i.e. if I kick off the template creation script and the database is up will it switch it into mount mode or anything like that? My concern here is that I want to make sure I understand exactly what is going on so that no users or connected external systems are affected?
Thanks in anticipation of someone being able to guide me on what to do or what documentation to read.
Also if you require any clarification on what i'm asking please post up your query and i'll respond ASAP.
Kind Regards,
George Johnston
OCP 9i DBA

Sybrandb,
Firstly thanks for you reponse.
However, I don’t agree that dbca only creates empty databases otherwise why does the option to create a template from an existing database (structure as well as data) exist in the dbca wizard?
I have performed a test case where I have a created a database template including data on one 10g server. I have then used the files generated to recreate that database on a separate server. When the new database is started it is an exact copy of the original. So it’s not empty at all , it’s exactly what the client wants.
So I don’t agree that I’m gaining zero.
Why is this approach doomed to fail?
There a number of reasons why I “just set up a proper standby database”
1.     Time – I’m on a customer site in a tight engagement where the customer wants maximum value for money. I don’t have standby database skills and the customer isn’t willing to pay for me to learn on the job so please understand the tight circumstances I’m working in.
2.     Availability – As far as I know the client is running 10.2.0.3.0 standard edition. Correct me if I’m wrong but is standby db available in that edition. Where do I look to check V$OPTION.
On the RMAN duplicating a database front it’s an area I haven’t used before but I will take a look at it.
Also please revisit the context of my original posting where I state
The background to this is that we will also be using RMAN to take backups of the database concerned but the client does not want to wait while an RMAN backup is restored and so wants an additional level of insurance in the form of a ‘standby’ clone database.
So please understand that this a quick fix that the client wants developed in the minimum time possible in ADDITION to a full nightly RMAN backup being taken.
In an ideal world I’d have the time to follow best practice but in the real world of on-site customer support I just need to get the job done operating under the customer imposed constraints.
Many Thanks,
George Johnston
OCP 9i DBA

Create table on Logical Standby Database

Dear DBAs,
here is my situation;
1. My primary database (where the tables' owner is "ICC" having a DBA) is used for insert/update transactions.
2. The logical stdby DB (dataguard structure with MAX availability) is used to generate reports, after updating some tables owned by the same user "ICC". note that these tables are excluded from the replication.
3. The developers might need to create this kind of tables to generate another kind of reports.
The issue is that when the standby apply is enabled or disabled, the user ICC is not able to create a new table, it gives ORA-01031: insufficient privileges. note that it's not practical to ask the DBA to disable the "APPLY" at any table creation.
Do you have an idea about how to resolve.
My database is 10gR2 path.10.2.0.4.0 on Windows 2003
Thank you in advance

If you stop applying log on the logical standby you can easily create a table over there. See oracle docs. The following list shows >how to re-create a table and restart SQL Apply on that table:
>
Stop SQL Apply:
SQL> ALTER DATABASE STOP LOGICAL STANDBY APPLY;
Ensure no operations are being skipped for the table in question by querying the DBA_LOGSTDBY_SKIP view:
SQL> SELECT * FROM DBA_LOGSTDBY_SKIP;
ERROR STATEMENT_OPT OWNER NAME PROC
N SCHEMA_DDL HR EMPLOYEES
N DML HR EMPLOYEES
N SCHEMA_DDL OE TEST_ORDER
N DML OE TEST_ORDER
Because you already have skip rules associated with the table that you want to re-create on the logical standby >database, you must first delete those rules. You can accomplish that by calling the DBMS_LOGSTDBY.UNSKIP >procedure. For example:
SQL> EXECUTE DBMS_LOGSTDBY.UNSKIP(stmt => 'DML', -
schema_name => 'HR', - object_name => 'EMPLOYEES');SQL> EXECUTE DBMS_LOGSTDBY.UNSKIP(stmt >=> 'SCHEMA_DDL', -
schema_name => 'HR', - object_name => 'EMPLOYEES');
Re-create the table HR.EMPLOYEES with all its data in the logical standby database by using the >DBMS_LOGSTDBY.INSTANTIATE_TABLE procedure. For example:
SQL> EXECUTE DBMS_LOGSTDBY.INSTANTIATE_TABLE(shema_name => 'HR', -
object-_name => 'EMPLOYEES', -
dblink => 'BOSTON');
Start SQL Apply:
SQL> ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE;Regards.

Shrink Log file in log shipping and change the database state from Standby to No recovery mode

Hello all,
I have configured sql server 2008 R2 log shipping for some databases and I have two issues:
can I shrink the log file for these databases: If I change the primary database from full to simple and shrink the log file then change it back to full recovery mode the log shipping will fail, I've seen some answers talked about using "No
Truncate" option, but as I know this option will not affect the log file and it will shrink the data file only.
I also can't create maintenance to reconfigure the log shipping every time I want to shrink the log file because the database size is huge and it will take time to restore in the DR site, so the reconfiguration
is not an option :(
how can I change the secondary database state from Standby to No recovery mode? I tried to change it from the wizard and wait until the next restore for the transaction log backup, but the job failed and the error was: "the step failed". I need
to do this to change the mdf and ldf file location for the secondary databases.
can any one help?
Thanks in advance,
Faris ALMasri
Database Administrator

1. can I shrink the log file for these databases: If I change the primary database from full to simple and shrink the log file then change it back to full recovery mode the log shipping will fail, I've seen some answers talked about using "No Truncate"
option, but as I know this option will not affect the log file and it will shrink the data file only.
I also can't create maintenance to reconfigure the log shipping every time I want to shrink the log file because the database size is huge
and it will take time to restore in the DR site, so the reconfiguration is not an option :(
2. how can I change the secondary database state from Standby to No recovery mode? I tried to change it from the wizard and wait until the next restore for the transaction log backup, but the job failed and the error was: "the step failed". I need to do
this to change the mdf and ldf file location for the secondary databases.
can any one help?
Thanks in advance,
Faris ALMasri
Database Administrator
1. If you change recovery model of database in logshipping to simple and back to full Logshipping will break and logs wont be resored on Secondary server as log chain will be broken.You can shrink log file of primary database but why would you need that
what is schedule of log backup. Frequent log backup is already taking care of log files why to shrink it and create performance load on system when log file will ultimately grow and since because instant file initilaization is not for Log files it takes time
to grow and thus slows performace.
You said you want to shrink as Database size is huge is it huge or does it have lots of free space. dont worry about data file free space it will eventually be utilized by SQL server when more data comes
2. You are following wrong method changing state to no recovery would not even allow you to run select queries which you can run in Standby mode. Please refer below link to move Secondary data and log files
http://www.mssqltips.com/sqlservertip/2836/steps-to-move-sql-server-log-shipping-secondary-database-files/
Please mark this reply as answer if it solved your issue or vote as helpful if it helped so that other forum members can benefit from it.
My TechNet Wiki Articles

UAT Database from Standby database

Hi,
I'm using oracle 11.2.0.2.0 on Windows 2008,
I have prod & standby databases, I want to create new UAT DB which wiil be same as prod,
How Can create a UAT using standby database cold backup,
can i use cold backup of standby database.
Thanks
Edited by: user10745179 on Oct 22, 2012 12:42 PM

This would be a database duplication from backup with RMAN. A Catalog will help, particularly as you are working in a Data Guard environment, but it is a straightforward and well documented operation:
http://docs.oracle.com/cd/E11882_01/backup.112/e10642/rcmdupdb.htm#i1008564

How to create a database for sample code from Tutorial/Book?

I want to try out the sample code from [http://shop.oreilly.com/product/0636920013471.do] for the book SQL Pocket Guide 3rd Ed.
I have downloaded the oracle vm/appliance for oracle 11g2 and I have started sqlplus as sysdba.
I'm feeling overwhelmed with these links describing how to create a database:
[http://www.adp-gmbh.ch/ora/admin/creatingdbmanually.html]
[http://tldp.org/HOWTO/Oracle-7-HOWTO-3.html]
[http://www.adp-gmbh.ch/ora/admin/creatingdbmanually.html]
(1) What is the command to list the existing databases?
(2) What is the command to delete an existing database?
(3) When creating a new database with the create database command, is it necessary to specify the logfile, character set, national character set, datafile, sysaux datafile, undo tablespace, temp table space? Do these have reasonable defaults? I'm not sure what proper directories are to specify for Linux and the examples are for windows.
Can someone give me a simplified create database command to create a database called 3rdEdPocketGuide? Should I follow the example at [http://tldp.org/HOWTO/Oracle-7-HOWTO-3.html] and instead of orcl use 3rdEdPocketGuide?
(4) What command do I use to execute the script that comes with the book SQL Pocket Guide 3rd Ed? This is the script that has all the drop table, create table and insert commands in it.
(5) What command do I use in sqlplus to set the current default database prior to running this script? Perhaps this is the connect command? I don't want my script to create tables in the system database.
(6) I tried the command "connect 3rdEdPocketGuide" and it prompted for a password! Yikes! What password? Do I need to specify a password when I create a database? I cannot tell if I have successfully created such a database or it is just prompting me for a password to thwart malicious users. Is it is possible to create databases which don't require a password or maybe a zero length password?
Thanks
Siegfried
Edited by: user8816970 on Sep 26, 2012 12:01 PM
Edited by: user8816970 on Sep 26, 2012 12:18 PM

user8816970 wrote:
Paul,
Thanks! I tried changing my profile name to siegfried but I'm not seeing the change...
Anyway, I'm trying your suggestion to use SQL Developer which was already installed in the virtual box appliance and I cannot figure out how to get a connection.
When I use the defaults of sid=xe, port=1521, hostname=localhost and specify
username=sysdba
password=
I get status: failure - test failed: listener refursed connection with the following error: ORA 12505, TNS: listener does not current know of sid given.
So I try sid=orcl and that works better: status: failure - test failed: ORA-01017: invalid username/passowrd; login denied
OK, sqlplus let me in with out a password, why does not this work?
So I try checking the box for "OS Authentication" and I get the same error!
Hoek: I tried searching the documentation and found "3 Exploring Oracle Database with SQL Developer" at http://docs.oracle.com/cd/E11882_01/appdev.112/e10766/toc.htm but following those directions did not help. Can you be more specific? The directions were for a tutorial and I need to know what the passwords are for the database set up with [http://www.oracle.com/technetwork/database/enterprise-edition/databaseappdev-vm-161299.html|http://www.oracle.com/technetwork/database/enterprise-edition/databaseappdev-vm-161299.html] . I also found [http://docs.oracle.com/cd/E11882_01/appdev.112/e10766/tdddg_connecting.htm#CEGHFHIG|http://docs.oracle.com/cd/E11882_01/appdev.112/e10766/tdddg_connecting.htm#CEGHFHIG] but that did not help either.
Everyone:
Do I need to create a user using SQL*Plus first so I can login with "Oracle SQL Developer" so I create my database called? What would be the "create user" command I would execute?
OK, so I run sqlplus and issue these commands
create user siegfried identified by abc ;
grant connect to siegfried ;
connect siegfried/abc;
Now, how do I create a database? In Microsoft SQL Server one has to create a database first and if you just start creating tables without creating a database first, the tables will be created in the system database and this is usually undesirable.
Sometimes a database is known in the java connection string as the catalog. Is there any such analog in oracle SQL plus?
So now what do I do? I want to create a bunch of tables using my script I downloaded from 3rd Ed SQL Pocket Guide. Does my new user "siegfried" have the right to create tables? I guess I could try but I don't want to create tables in the system database.
I noticed I can also use "Oracle SQL Developer" to connect with my new "siegfried" account. It seems that I should have been able to connect with sysdba... strange.
So now I am connected in the "Oracle SQL Developer" and I see no list of databases.
Thanks!
Siegfried
>Paul,
Thanks! I tried changing my profile name to siegfried but I'm not seeing the change...
Anyway, I'm trying your suggestion to use SQL Developer which was already installed in the virtual box appliance and I cannot figure out how to get a connection.
When I use the defaults of sid=xe, port=1521, hostname=localhost and specify
username=sysdba
password=
I get status: failure - test failed: listener refursed connection with the following error: ORA 12505, TNS: listener does not current know of sid given.
So I try sid=orcl and that works better: status: failure - test failed: ORA-01017: invalid username/passowrd; login denied
OK, sqlplus let me in with out a password, why does not this work?
So I try checking the box for "OS Authentication" and I get the same error!
Hoek: I tried searching the documentation and found "3 Exploring Oracle Database with SQL Developer" at http://docs.oracle.com/cd/E11882_01/appdev.112/e10766/toc.htm but following those directions did not help. Can you be more specific? The directions were for a tutorial and I need to know what the passwords are for the database set up with [http://www.oracle.com/technetwork/database/enterprise-edition/databaseappdev-vm-161299.html|http://www.oracle.com/technetwork/database/enterprise-edition/databaseappdev-vm-161299.html] . I also found [http://docs.oracle.com/cd/E11882_01/appdev.112/e10766/tdddg_connecting.htm#CEGHFHIG|http://docs.oracle.com/cd/E11882_01/appdev.112/e10766/tdddg_connecting.htm#CEGHFHIG] but that did not help either.
Everyone:
Do I need to create a user using SQL*Plus first so I can login with "Oracle SQL Developer" so I create my database called? What would be the "create user" command I would execute?
OK, so I run sqlplus and issue these commands
create user siegfried identified by abc ;
grant connect to siegfried ;
connect siegfried/abc;
above does NOT use SQL*Net to connect to the instance
>
Now, how do I create a database? In Microsoft SQL Server one has to create a database first and if you just start creating tables without creating a database first, the tables will be created in the system database and this is usually undesirable.
Sometimes a database is known in the java connection string as the catalog. Is there any such analog in oracle SQL plus?
So now what do I do? I want to create a bunch of tables using my script I downloaded from 3rd Ed SQL Pocket Guide. Does my new user "siegfried" have the right to create tables? I guess I could try but I don't want to create tables in the system database.
I noticed I can also use "Oracle SQL Developer" to connect with my new "siegfried" account. It seems that I should have been able to connect with sysdba... strange.
So now I am connected in the "Oracle SQL Developer" and I see no list of databases.SQL Developer can only connect to the instance via SQL*Net
>
Thanks!
Siegfrieda database in SQL Server is same as schema/user in Oracle

How can I create a database from a sharepoint using entity framework

Hello All,
I want to develop a data base from SharePoint list independently. The column name are based on a SharePoint list eg: Contact-list (will be having 10 columns)
can any one please suggest me an idea on how to do this task? Which Visual Studio template is suitable for this purpose?
I confused with starting with following Visual studio template!!!
Empty SharePoint Project??, Business Data Connectivity Model??, ASP.Net Web application??
Somebody please help me soon....
I am using SharePoint 2010 and Visual Studio 2010

Hey,
basically you should start with an empty SharePoint 2010 project where you add an List-EventReceiver. This Receiver should point to the url of the list and handle the ItemAdded-Event. In this method you place the code to create the database, for example
with a SQL-Statement.

Error While creating new database connection from HFM workspace

Hi,
We have recently installed HFM and was trying to create database connection from database connection manager in HFM workspace.
I am getting below error:
"Error connecting to database connection : no HssJNIDriver950 in java.library.path" initially and later
"Error connecting to database connection : com/hyperion/ap/adm/HssConn".
Any information in this direction would helpful.
Thanks,
Bhargav
Edited by: bhargavr on Jan 24, 2011 6:55 PM

Hi bhargavr,
We came accross the same issue. Try the following solution below for this 'KNOWN ISSUE' and let me know how you get on. Drop me a note if you have any questions regarding this post.
Error: *"Error connecting to database connection: com/hyperion/ap/adm/HssConn" While Creating a Financial Management Database Connection* [ID 1102697.1]
Modified 04-JAN-2011 Type PROBLEM Status PUBLISHED
Applies to:
Hyperion BI+ - Version: 11.1.2.0.00 and later [Release: 11.1 and later ]
Microsoft Windows x64 (64-bit)
Symptoms:
You are running the Financial Reporting Web Server on a 64-bit server.
When you try to create a new Financial Management (HFM) database connection using the Database Connection Manager in Workspace you receive the following message:
“Error connecting to database connection <connection_name>: com/hyperion/ap/adm/HssConn”
You can create a database connection in Financial Reporting Studio. When you refresh a report with a Financial Management database connection, you receive one of the following messages:
“1001: Error connecting to database connection <DATABASE_CONNECTION_NAME>: com/hyperion/ap/adm/HssConn”
or
“1001: Error connecting to database connection <DATABASE_CONNECTION_NAME>: no HssJNIDriver950 in java.library.path”
Cause:
The issue is documented in unpublished bug 9537050, and in Known Issues in the 11.1.2 Reporting and Analysis Readme. Cross-reference unpublished bug 9707353.
Solution:
In the Windows registry, take the following steps:
Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\HyperionSolutions\FinancialReporting0\HyS9FRReports.
For each of the following entries, prefix the contents with text in the blue box: Env2, JVMOption13, and JVMOption17 (note that the JVMOption numbers might be slightly different in your environment).
C:\Oracle\Middleware\EPMSystem11R1\common\ADM\11.1.2.0\bin-64
If your EPM_ORACLE_HOME is not located at C:\Oracle\Middleware\EPMSystem11R1, replace that location with your location.
Restart the server.
G'Luck,
-David

Unable to Create Entity Model from existing oracle database

Hi,
I am using Visual Studio 2013, .net framework 4.5, entity framework 5.0 and oracle 11g database.
Issue Description: I need to develop WCF service to exposing the account information which needs to get the data from 20 oracle tables. Trying to create entity model from existing oracle database. first i tried creating just two tables it
was created but it took more than 30 minutes. then i selected remaining few tables it took more than a days but nothing created just showing spinning the wheel. then i tried with fresh project and selected all the tables but same issue nothing created and
also there is no error. during this process i checked database query monitoring there is a big sql statement collection tables metadata. i don't know what was wrong the query taking too much time to complete the process.
we tried multiple machine and different oracle database all are same issue.
Sql server database -looks good no issues.
Any help/tips/ideas welcome to overcome this issue.

Hi Sakthimp,
Welcome to MSDN forum.
Your issue is out of support range of VS General Question forum which mainly discusses the usage of Visual Studio IDE such as
WPF & SL designer, Visual Studio Guidance Automation Toolkit, Developer Documentation and Help System
and Visual Studio Editor.
Because your issue only occurred with oracle database, moreover Oracle developed the Entity Framework for Oracle itself, I suggest that you can consult your issue on Oracle forum/community:
you will get better solution and support there.
Best regards,
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
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HERE to participate the survey.

Create a database link to access SqlServer 2005 view from oracle 11gr2

Hi All,
Greetings for the day.
Though I have seen quite a few posts but just wanted to cross-verfiy and double check hence posting.
Oracle Database : 11gr2
OS :SOLARIS SPARC 64 Bit
SQL Server Database : Sql Server 2005
OS : Windows 2003 32 Bit
The requirement is to access a view residing in the SQL Server 2005 Database using the Oracle Database. This involves creation of a Database link in the Oracle Database to access the SQL Server.
Can you suggest which approach should i follow ( I am able to understand that both do the same job ):
How to Configure DG4MSQL (Oracle Database Gateway for MS SQL Server) 64bit Unix OS (Linux, Solaris, AIX,HP-UX) post install [ID 562509.1]or
How to Configure DG4ODBC on 64bit Unix OS (Linux, Solaris, AIX, HP-UX Itanium) to Connect to Non-Oracle Databases Post Install [ID 561033.1]Will they do the same job ? And can they be used on any OS and version of the SQL Server Database as version information for SQL Server is not specified anywhere?
Please let me know so that I can it forward with Business for approvals and budgetting.
Regards
KK

Your question is similar to the post: Oracle 11gr2 connection to Sql Server using dg4msql problem
Please visit: http://stackoverflow.com/questions/4658942/oracle-11gr2-connection-to-sql-server-using-dg4msql-problem
Answer on the website:
You seem to be using the Gateway for MySQL set-up rather than the Heterogeneous Gateway (for ODBC connections). Here is an overview of the process
On SQL Server create a database user and give it read access to the database/tables you want to read via the Oracle database link.
In the gateway home each SQL Server database you want to access should have an init.ora located in $OH/dg4msql/admin in the form initsid.ora where sid is the name of the database to be used in the link (e.g. initbob.ora), so create one
HS_FDS_CONNECT_INFO=msserver1:1234//Example_Database
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=RECOVER
HS_FDS_RECOVERY_PWD=RECOVER
HS_TRANSACTION_MODEL=READ_ONLY
You must now add the new sid to the listener.ora in the gateway home using an additional SID_DESC section inside the existing SID_LIST, for example
(SID_DESC =
(SID_NAME=bob)
(ORACLE_HOME=/oracle/gateway/product/11.2.0)
(ENVS=LD_LIBRARY_PATH=/oracle/gateway/product/11.2.0/dg4msql/driver/lib;/oracle/gateway/product/11.2.0/lib)
(PROGRAM=dg4msql)
You should now stop and restart the gateway listener so that the new sid becomes active. NB a reload is not enough.
You must now add the new sid in the tnsnames.ora file for the listener of each database in which you will create a link. You don't need to do this in the gateway home unless it is also a database home in which you will create a database link.
bob =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = severname.example.com)(PORT = 1690))
(CONNECT_DATA = (SID = bob))
(HS = OK)
NB: The host and port are for the gateway not for the SQL Server database
In each database that requires a link to the MS-SQL database you should create a database link to your new gateway sid.
CREATE PUBLIC DATABASE LINK bob
CONNECT TO "ms_user" IDENTIFIED BY "ms-passwd" USING 'bob';
where ms-user and ms-password are the SQL Server user you created right at the start.
Now you can test the new database link
SELECT COUNT(*) FROM "Table_Name"@bob;
Once you have this working you can alter the initsid.ora file to add parameters to suit your connection. If you do it this way you can easily add and manage many different databases via the gateway.
Hip
Edited by: 1000595 on 04:58 17-04-2013

What is the best way to create a database schema from XML

What is the best way to create a database schema from XML?
i have a complex XML file that I want to create a database from and consistently import new XML files of the same schema type. Currently I have started off by mapping the XSD into Excel and using Mysql for Excel to push into MySQL.
There must be a more .net microsoft solution for this but I cannot locate the topic and tools by searching. What are the best tools and way to manage this?
Taking my C# further

Hi Saythj,
When mentioning "a database schema from XML", do you mean the
XML Schema Collections? If that is what you mean, when trying to import XML files of the same schema type, you may take the below approach.
Create an XML Schema Collection basing on your complex XML, you can find
many generating tools online to do that.
Create a Table with the above created schema typed XML column as below.
CREATE TABLE youTable( Col1 int, Col2 xml (yourXMLSchemaCollection))
Load your XML files and try to insert the xml content into the table above from C# or some other approaches. The XMLs that can't pass the validation fail inserting into that table.
If you have any question, feel free to let me know.
Eric Zhang
TechNet Community Support

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