Determine if database exists?

Is is possible, through Java, to determine if a database exists on a particular database server? We have an application that will either create or migrate a database, and I need to add a check in the installer to ensure that the given database name exists before continuing. I'm looking for something that works with both SQL Server and Oracle (but SQL would be fine atm). Any help is greatly appreciated and thanks in advance.

As far as I know, you have to connect to the database and you are quite correct, it will only verify if you have rights to read from that database. If are wondering what to do if you don't have appropriate system rights in the database or ability to connect to the database, then you will have to go the registry route for Oracle and see if the database you are looking for has been registered--I will assume SQL does something similar, but I do not know. This assumes you will have rights enough on the server to search the registry.
Aside from the previous suggestions, you can literally search the server directory structures looking for the database you seek. This way you also have to have appropriate rights into the server.
Any way you look at it, you are going to have to have a login account and appropriate rights to find what you are looking for--however you choose to do the searching.

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Check the table RSOSFIELDMAP
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How do you find if a LOGICAL DATABASE exists for your program requirements?

how do you find if a LOGICAL DATABASE exists for your program requirements?
please explain.

Hi Ramana
One may not accurately pin point the LDB for ones requirement. But there some ways.
1. You can find with respect to the application you are working on. You can refer to the Table field TRDIR-APPL. The following are the values it has. So suppose if you have requirement for HR you can search for application 'P' :
A Assets accounting
D DASS control station
E RIVA
F Financial accounting
G General Ledger
H Human resources planning
I Maintenance
J RK projects
K Cost accounting
L Warehouse management
M Materials management
N Hospital
P Human resources
Q QSS
S System
V Sales
Y Customer head office
Z Customer branch
2. You can see the package in which your current is stored in SE80. Under the same package you can see if there are any LDBs.

How to find if a logical database exists for your program requrements?

hi
How do you find if a logical database exists for your program requrements?
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Database.exists fails with "illegal flag specified to DB- exists" in 4.7.25

Hello all!
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<blockquote><pre>
java.lang.IllegalArgumentException: Invalid argument: illegal flag specified to DB->exists
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</pre></blockquote>
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<blockquote><pre>
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</pre></blockquote>
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<blockquote><pre>
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[http://www.oracle.com/technology/documentation/berkeley-db/db/ref/upgrade.4.4/autocommit.html]
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<blockquote>
In previous Berkeley DB releases, the DB_AUTO_COMMIT flag was used in the C and C++ Berkeley DB APIs to wrap operations within a transaction without explicitly creating a transaction and passing the DB_TXN handle as part of the operation method call. In the 4.4 release, the DB_AUTO_COMMIT flag no longer needs to be explicitly specified.
</blockquote>
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<blockquote>
No related application changes are required for this release, as the DB_AUTO_COMMIT flag is ignored where it is no longer needed. However, application writers are encouraged to remove uses of the DB_AUTO_COMMIT flag in places where it is no longer needed.
</blockquote>
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Greg

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Avi,
Like this ?
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