Including multiple databases per connection

I have linked tables accross multiple databases and would
like to include all applicable tables (from multiple databases) in
a single dreamweaver database connection. Is this possible. I can't
put all tables in a single database because one of the databases is
a mirror of a quoting application and gets backed up to regularly
which is why I need to keep intact.

>microsoft access, is this what you are asking
Yes, that is what I was asking. But I really don't know the
answer for MS Access as I've never tried. I've worked with linked
tables in Access, but not from ASP. Why don't you just give it a
try. It should take a few minutes to test.

Similar Messages

Multiple Databases per volume ??

hi all,
i do not understand this point : "Multiple Databases per volume let you have both active and passive databases on the same volume " ok right
it was also possible in Exchange 2010 in jbod configuration...
in place in our orga 2010.
2 dag member : 2 disk par server
disk 1 :
DB1 + logs active
DB2 + log passive
Disk 2
DB2 + logs active
DB1 + log passive
it s the reason why i dont get the enhancement for this point..
can somebody kindly explain me why Multiple Databases per volume in ex 2013 is a new feature?
regards,

i think i get it.
in 2010 it was possible but not supported.
Now because of decrease of IOPS in 2013 it is officially supported. right ?
i got confused because of that :
"Multiple databases per volumeis a new JBOD scenario available
in Exchange 2013 that allows for active and passive copies (including lagged copies) to be mixed on a single disk"
https://technet.microsoft.com/en-us/library/ee832792%28v=exchg.150%29.aspx#Best
Yep! https://technet.microsoft.com/en-us/library/dn789066(v=exchg.150).aspx
Twitter!: Please Note: My Posts are provided “AS IS” without warranty of any kind, either expressed or implied.

Create connection multiple database server connection with sinle client

My problem is like this. I have 3 database servers like server A,server B,Server C. First Client will communicate with server A and Server B at the same time. Then if the connection is done then i need communicate with server C. Is there anybody who has the sample code for this. Please help me i am facing problems with this.

I want to build a web site using jsp servlet for my university course purpose. In the background i will have three servers one is database server like server A another is certificate authority server like server B and the other one is Bank server like server C. Next, user will input through login page(say for example user name & password for database server A, certificate credentials for server B) then the login page will check user credentials kept in server A and at the same time with server B(CA server). If the user credentials kept in both of these servers(A &B) are matched then the page will inform that this is the valid user and connect to the bank server for money transaction. I hope now the my problem is clear to you. please answer me how can i prepare for that.
what are the concepts related to that and have any demo code which i can use for that purpose.

Connection to multiple databases using a single EJB

How can I connect to multiple Databases (using @PersistenceContext) using an EJB?
Did I need to connect various Entity Managers corresponding to the each database and simply send my Queries?
I am using Glassfish Application Server
Netbeans IDE
Java Derby Database
Oracle Database
Java Persistence API
Thanks in Advance

Yes, you need a persistence context and thus entity manager per database. Depending on what you want to achieve you may also need to go to the next level in your skill set and learn all about distributed transactions.

Multiple DataBase Connection in a Single Form

hi all
Is it Possible to have Multiple Database Connection With a Single Form
Block a : Retriving data from a database Service a/Schema A.
Block b : Retriving data from a Remote Database Service b / Schema B.
If yes how to do this.
regards
jai
email:[email protected]

Sure you can access a database this way,
but can you base a block on this database connect? No you can't.
Frank

Multiple HTML DB connecting to the same database, in error

I am having a problem getting the HTML DB application in instance TMSQA to connect to the TMSQA database; it connects to the TMSDEV database. I have tried setting the connect_string under DAD_HTMLDB in wdbsvr.app in both TMSDEV and TMSQA to their corresponding IP addresses and hostnames. But when I connect to HTML DB via my browser using either IP address:7777/pls/htmldb or hostname:777/pls/htmldb in the URL, I always connect to TMSDEV.
I have one physical server called ORATEST3 at IP address 172.31.243.33. It is divided into 2 virtual servers:
TMSDEV:
IP address - 172.31.243.53
ORACLE_HOME - /db/tmsdev/u01/app/oracle/product/9.2.0.5/
HTTP Server - /db/tmsdev/u01/app/oracle/product/9.2.0.5/Apache
TMSQA:
IP address - 172.31.243.72
ORACLE_HOME - /db/tmsqa/u01/app/oracle/product/9.2.0.5/
HTTP Server - /db/tmsqa/u01/app/oracle/product/9.2.0.5/Apache
Does anybody have any idea as to how to setup the HTML DB in each instance to connect to its corresponding database?

Hi all,
Sorry for replying late.
Thanks @Dude, Nelson Calero, indeed it helped me!
I could recover database multiple times from a same snapshot and thus I would like to share my findings.
Found that when we recover database with RESETLOGS option it actually starts a new database version called Incarnation of the database. Once this new branch is started we can recover database from old backup only till the SCN point where we performed DBPITR. After that point, snapshot/backup becomes orphaned backup.
[http://docs.oracle.com/cd/B19306_01/backup.102/b14192/flashptr006.htm]
If you want to recover database from the same old backup we have to reset the database to the incarnation number when snapshot/backup was taken using following command:
RMAN> RESET DATABASE TO INCARNATION 2; (considering backup was taken at Incarnation 2)
Also, If current controlfile is missing you need at least one backup of current controlfile. It is mandatory as after resetlogs, sequence number of log file changes and you cannot recover database from any available backup.
To make sure that latest control backup is always available please enable the AUTOBACKUP feature of the database which backs up the controlfile and spfile on any database change event.
Again this is the lesson for those who don't know much about AUTOBACKUP.
Regards,
Shrirang

Application that connects to multiple databases.

I am developing an application that performs many task, but one in particular is connecting to multiple databases and creating user accounts in each all with the push of a single button. I have tried putting connect statements in the trigger code but I don't get the desired results.
How would I get my application to switch database connections while in execution?
Please reply to the forum, or email me @ [email protected]
Thank you.
Travis

Hi
The only possible way which I could find for your requirement is that of DB Links. Establish DataBase Links among the multible databases, with which you want to work in one session. Peform all your actions through the DB Links.

Multiple Database Connectivity

How do we establish connectivity to multiple databases from within one Java Application. And how do we so without any File DSN? We are developing an application which requires dynamic changing of databases located at remote locations. Please help.

you can use a properties file to load the DB details on runtime based on the criteria.
Just put your DB details in a TEXT file and store it as .properties file. You can read it using any input methods from java and pass the parameters to your connection.
Hope this helps.Cheers,
Sekar

Does BO 4.1 enable universe to connect to multiple database?

Using BO 3.1, we can only connect an universe to single database. However, with BO 4.1 will it be possible to connect a single universe to multiple database?
Regards
Vinay

Vinay, You can connect Universe to multiple databases using IDT (Information Design Tool). Find the below link for reference.
SAP Business Objects Multi Source Universe - Information Design Tool - YouTube
Regards,
Sujitha

Connecting to Multiple database

Hi how could i use Dreamweaver CS3 to connect to multiple
databases in phpmyadmin?

Maneet Puri wrote:
> Hi,
>
> I have used a lot the extensions of Dreamweaver for
implementing various
> dynamic features with connectivity to MySQL databases,
and I don't think there
> is any extension which allows connecting to the multiple
MySQL database. To do
> this you will have to make changes to scripts, at one
point of time from one
> script in one instance there can just be one connection
to one MySQL database,
> what you can do is switch between the users and database
of mysql. PHP offers a
> function mysql_change_user() to switch users and connect
to various different
> MySQL database.
What is stopping you from having more than one database
connection
string? You can select the connection from each behaviour
that needs
different databases.
Or is then intent to combine the data from 2 database into
one recordset?
Dooza
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JDBC - Connecting Multiple Databases

Hi JDBC's
I would like to know if it is possible to retrive a data from different tables and from different databases using a single query, which mean can I retrive data from multiple tables multiple databases in a single JDBC connection?
If not, How do I implement it?
Any Ideas or please point me to any related solution if you have.
Thanks.

Although theoretically possible in fact a single JDBC connection cannot work with several databases. To implement this feature somebody has to write another aggregating JDBC driver which parse SQL statement and work with other databases in background. I like this idea, but currently there is no such driver available.
Scriptella ETL (http://scriptella.javaforge.com) offers an interesting solutions for cross-database operations. See example on how -to copy a table from oracle to hsqldb: http://snippets.dzone.com/posts/show/3511
If you want to join 2 tables from different databases and copy the result to a third database use the following code:
<query connection-id="db1">
SELECT * FROM Table1
<query connection-id="db2">
SELECT * FROM Table2 WHERE Table2_ID=?Table1_ID
<script connection-id="db3">
INSERT INTO Table3 VALUES (?rownum, ?Table1_Field, ?Table2_Field);
</script>
</query>
</query>
Message was edited by:
ejboy

Best way to connect java app to multiple databases?

I'm working on my first commercial application, and I want it to be as flexible as possible, meaning I want it to be able to connect to a wide range of databases, as the customer chooses. I'm wondering what the best way is to accomplish this, I don't really want to have to buy a commercial license for third party ODBC drivers, any one have some good comments on this?

You have two fundamental options:
Use an O/R mapping tool like: Hibernate, EJB BMP, JDO, etc.
Develop your own using JDBCIf you opt for the former, you should ask youself, "What value do i add? Or should I simply use these technologies?" The advantages are that dozens of other developers, going down similar routes, have faced the obstracles you will face and more. The disadvantage is that none of these developers has actually faced your specific problem. This is not to say that the solution does not already exist. The efficacy of this methodology will be how closely the general solution fits with your own (and since many problems have the same challenges, this will often be true).
If you opt for the latter, you will have both an opportunity and a pitfall. The precise, business issue your current project addresses has many things both in common with other projects and also a handful of unique challenges. The hard part is determining whether this challenge actually differs in some fundamental way, or whether you have discerned some fault or opportunity in your methodology compared to standard (or even cutting-edge) practices.
In reality, the challenge of "connecting to numerous, heterogenous (and probably vaprous) database systems" has long been addressed. Addressed, but perhaps not solved. If your goal is to develop a class library, for personal or consulting use, or to increase your understanding of the O/R boundary and best practices to obviate it, then my best advice is to read existing literature, and give it your all. There is no right answer here, and building on an existing experience of failure and success is indispensible.
If your aim is to solve the O/R mapping challenge, or to suppant JDBC BMP, Hibernate or JDO, then my hat is off to you. We are all eagerly awaiting that day. (Sadly, after much effort, it has not yet arrived).
So, can you connect Java to multiple databases, and even a diverse array of RDBMS vendors? Of course! But what will you do with those conections?
- Saish

Can limit my users to one connection or even 2 on the database per username

Our end-users access our database via a Jave based form front end after installing JInitiator on the PC
Does anyone know if there Is anyway i can limit my users to one connection or even 2 on the database per username.
Could i also have timeout on each session on idle time in order that when the connection is idle for say 10 minutes the users session is automatically logged off the db.
Any helpp will be appriciated.
D

Hi,
>>or even 2 on the database per username ...
timeout on each session on idle time in order that when the connection is idle for say
10 minutes ...
Just an example:
C:\>sqlplus system/password
SQL*Plus: Release 10.1.0.2.0 - Production on Fri Nov 16 17:06:50 2007
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
SYSTEM@ORACLE10> alter system set resource_limit = true;
System altered.
SYSTEM@ORACLE10> create profile test limit idle_time 10 sessions_per_user 2;
Profile created.
SYSTEM@ORACLE10> alter user legatti profile test;
User altered.
Session 1
C:\>sqlplus LEGATTI/password
SQL*Plus: Release 10.1.0.2.0 - Production on Fri Nov 16 17:07:39 2007
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
LEGATTI@ORACLE10>
Session 2
C:\>sqlplus LEGATTI/password
SQL*Plus: Release 10.1.0.2.0 - Production on Fri Nov 16 17:07:39 2007
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
LEGATTI@ORACLE10>
Session 3
C:\>sqlplus LEGATTI/password
SQL*Plus: Release 10.1.0.2.0 - Production on Fri Nov 16 17:08:24 2007
Copyright (c) 1982, 2004, Oracle. All rights reserved.
ERROR:
ORA-02391: exceeded simultaneous SESSIONS_PER_USER limit
Enter user-name:Cheers

Firefox asks me if I "want to connect to:" every website, multiple times per website; to the point now its so annoying, i don't even use firefox. What can I do to correct this? Do I have a virus?

when i initially open firefox, this is what pops up. This type of thing pops up multiple time per website.
Firefox
wants to connect to snippets.mozilla.com on TCP port
443(https). show details
its asks me if i want to allow" or Deny"
Similar pop ups come up continuously during my time on each site.

Firefox and other browsers would need access to ports 80 and 443 to work. I think you may want to enable port 80 and port 443 (when it asks) and choose '''Forever''' or at least '''Until Quit''' for a smoother experience. If you believe you downloaded Firefox from a safe site like mozilla.org and your PC is safe (like, there is no other rogue app that can hijack Firefox) then there shouldn't be cause for concern to give it '''Forever''' exception on ports 80 and 443.
edit:
"however it was working fine, until all of a sudden"
This may happen if Firefox was updated, because the old signature or hash stored by the security application for Firefox would change. This may also mean that the previous version of Firefox already had unhindered access.

Multiple OLE DB connection managers to the same database instance in a SSIS package

Hi,
While migrating DTS package to SSIS package, I came across one which had multiple OLE DB connection managers all connecting to the same Oracle schema in the same instance.
There are that many execute SQL task corresponding to each of these connection managers.
Each of these SQL task call different Oracle stored procedures and executes them in the same schema in the same instance.
My question is, is there any particular reason or advantage in having multiple connection managers?
Can't we have one single connection manager and use the same in all of these SQL tasks?
Does multiple connection managers provide any added advantage like parallelism or something?
In this particular case, there are no actual workflows, rather each of these SQL tasks are stand alones. But there are other packages which has SQL tasks in workflow but still each of them calling separate connection managers all calling the same schema
in the same instance.
Thanks for your time.
Cordially, Biju George

Well like I said, each of these SQL task calls "different" Oracle stored procedures even though executes them in the same schema in the same instance. I tried a sample testing by creating two separate packages, one with only one single
OLE DB connection referred in all of the SQL tasks and in the other one with mutiple OLE DB connections to the same schema in the same instance each of which is referred in each of the SQL task in one to one mapping.
Now the first one created one session in Oracle but the later created as many sessions as there where OLE DB connection managers. The first one took longer to complete than the second one since second one created independent sessions and executed those procedures
sort of parallely.
I guess that can be called an advantage of creating multiple connection managers to the same schema in the same instance.
Cordially, Biju George

Including multiple databases per connection

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