Oracle- How to check if streaming functionality is enabled in the database - oracle

I need to consume streaming data from an oracle database.
The database team informed me, that the streaming functions are enabled, but how can I make sure of that?
Database version: 19.0.0.0.0

Streams are desupported in Oracle 19c meaning that they can not be used at all. See Oracle Support Doc 2388741.1. It is also mentioned in the release notes for 19c.

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Oracle: Copy Database Oracle 10.2.0.2 to Oracle 12c

Currently we have a database running on Oracle 10g (10.2.0.2) in production which needs to be up 24/7, but since it is not supported by the data center, both server OS and Oracle database 10g, we have to move to Oracle 12c as agreed by the superiors. I know I can't use a direct expdp/impdp from 10.2.0.2 to 12.2.0.1. And with limited resources, meaning server resources and no access to oracle support to download oracle 10.2.0.5 patch set or any patch set that is available.
What is the safest and best way with minimal downtime option to move it from 10g to 12c? Do I need to install an 11gR2 software and use it to expdp the data?
The impdp should be downward compatible, but what you can do is:
Do the expdp of your 10.2 database with the 12c software
Use the VERSION parameter of expdp and impdp if you still have problems
You have not told us how big your 10.2 database is and whether you have a limited budget or not. Sometimes the 'superiors' want every last transaction accounted for, and the only way to do this is to use Goldengate. So you can setup the target database, take as long as you need to import the data, and all the while goldengate is keeping the source and target in synch. Goldengate is expensive though and should only be necessary if you have terabytes to deal with.

PostgreSQL to Oracle Database with Oracle GoldenGate 11.2.1

I've spent 2 days to sync postgresql database to oracle. Read few books, googled many times..
1. I have setup PostgreSQL on CentOS 6.5 (A) also installed oracle database on this VPS. copied GoldenGate to it.
2. I have already setup 2 oracle VPS using Goldengate and setup as Source (B) and Target (C). I'm trying to sync PostgreSQL to Target VPS.
3. GoldenGate runs on A server without error.
The problem is when I setting up it requires ODBC config (page 14). I'm new to PostgreSQL so little confusing for this..
Also when I google i find only to postgresql from oracle.
Main doc I'm following is http://docs.oracle.com/cd/E35209_01/doc.1121/e29642.pdf
Actually I have found Oracle Golden Gate new features https://blogs.oracle.com/dataintegration/resource/2013-DIFamily/OGG_WinUnix_Rel_Notes_11.2.1.0.7.pdf
Oracle Golden Gate don't support what I want to do.
They say:
Oracle GoldenGate introduces support for PostgreSQL. This support includes the mapping, manipulation,
filtering, and delivery of data from other types of databases to a PostgreSQL database. Oracle GoldenGate
does not support the capture of data from PostgreSQL to other PostgreSQL databases or to other kinds of
databases.
GoldenGate does not support Postgres as a source - only target.
Check out Attunity for what you are trying to do.
Postgres support was only for delivery in Oracle GoldenGate 12.2. Oracle is working on a full capture/delivery support for Postgres. It will be out in a later release post 19c. Please check the OTN website for versions.

Working with WebCenter Content UCM workflow

Which of the Java-libraries can give me access to the management of workflows (creating, adding files to workflow).
How is it done?
You access the workflows using the exposed services.
Please refer to the Oracle documentation.
I've put links in for both the 10g and 11g services since they remained much the same between the releases.
Oracle 11g Documentation
Oracle 10g Documentation

Oracle 11g Backward compatibility with older oracle releases

Our organization is planning to upgrade its most of the oracle servers & clients to 11g Release 2.
But one of our client system is still using oracle 8i installation.
Can we able to access the objects of Oracle 8i from oracle 11g client?
Some blogs says that it should work and other say it won't.
Can anybody faced any issue with such configuration.
One of the senior dba told us that oracle only supports backward compatibility of 2 versions earlier to current version. Assuming this fact we shouldn't been able to access database objects running on oracle version 8.
Kindly help.
Thanks in advance.
We had to revert to Oracle 10 client (10.1, I believe) in order to connect to an Oracle 8 database. If there is a way to do it using 11.2, I'd like to be schooled.
EDIT: 10.2 will work. Here's the official word:
http://www.oracle.com/technetwork/database/windows/install10202-083849.html
"Access to an Oracle Database Server (Oracle8i Release 3 or later)"
And as of 11.1, you're out of luck:
http://www.oracle.com/technetwork/database/windows/install11106-087844.html
"Access to an Oracle Database Server (Oracle9i Release 2 or later)"
Oracle doesn't even list version 8 in any compatibility tables on their web site. We verified that current (11g R2) JDBC drivers from Oracle do not work with Oracle 8 database sources. It means that it is not possible to access Oracle 8 databases from the latest version of Oracle SQL Developer because it is using JDBC driver.
While there is a slim chance to be able to access Oracle 8 from some other Oracle 11g client, I would not bet my business on that.
Check out MyOracleSupport
Subject: Client / Server / Interoperability Support Between Different Oracle Versions
Doc ID: 207303.1
It won't go directly.

Can Oracle forms 11g connect to DB2 or SQL Server?

I just want to know whether Oracle forms 11g supports other databases like DB2, SQL Server etc.
Also does Oracle forms 11g supports Oracle database 9i or 10g apart from 11g?
According to the Oracle middleware certification spreadsheet (once you have opened the spreadsheet, click "Current System (Server and Client) Certification" and then search for Oracle Forms) you will see that Oracle Forms is certified against the following database versions:
Oracle 10.2.0.4+
Oracle 11.1.0.7+
Oracle 11.2.0.1+
Oracle Forms may work with earlier versions than what have been listed but if you run into problems you won't be able to get support from Oracle.
Oracle Forms 11g can be used against non-oracle datasources. To get started look in the Forms help, Google, and the Oracle Forms forum on OTN for transactional triggers.
However my personal opinion is whilst Oracle Forms is a great tool with Oracle Database you should seriously think about whether it is the right tool for working with other datasources.

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