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I need to set up a DSN to connect to an Oracle db from R. I know that I have oracle clients install, because I can connect Oracle databases using PL/SQL. When I open Control Panel->Administrator Tools->Data Sources, I dont see Oracle in there. I only see Sybase, MSSQL and excel. How do I add Oracle under System DSN so that I can create a dsn to connect to an Oracle db?
Try downloading the Oracle ODBC Driver
http://www.oracle.com/technetwork/database/windows/downloads/utilsoft-098155.html
I know when i used to install oracle for a program i would do custom install then under Oracle Windows Interfaces select Oracle ODBC Driver
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I am trying to learn Oracle SQL with the help of the book 'Oracle SQL by Example' and it recommends that I download Oracle 11g to be able to take full advantage of what the book has on offer when it comes to practising the skills I learn.
However, Oracle's website seems not to offer 11g for Mac and I cannot find a link to 10g that is still valid (or, indeed, that doesn't dead end at the Oracle website). Does anyone have any suggestions. Thanks.
The simplest route might be to install VirtualBox and one of the pre-built VM images Oracle provides. It's simpler to get started than having to navigate the database software installation and DB creation, if you aren't interested in those aspects at the moment.
The Database App Development VM gives you a pre-installed database, plus SQL*Plus and SQL Developer to run examples and your own code as you learn.
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Is there a way to download different versions of the Oracle JDBC drivers and Universal Connection Pool (UCP) from the Oracle Maven Repository?
Yes, Oracle JDBC drivers and Universal Connection Pool (ucp.jar) files are now available in the Oracle Maven Repository. The JDBC drivers and ucp.jar from 11.2.0.4, 12.1.0.1, 12.1.0.2 and 18.3.0.0 releases are available in the Oracle Maven Repository. Complementary jars such as simplefan.jar and ons.jar can also be downloaded from the same location.
Refer to the blog "Get Oracle JDBC drivers from the Oracle Maven Repository - NetBeans, Eclipse & Intellij" for step by step guidelines.
Please feel free to share your comments by commenting in this post.
Thanks,
Oracle JDBC & UCP Team
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Our production Oracle Database version is 10g.
I am trying to install either 11g or 12c on my local machine primarily to access sqlldr.
I am wondering if there are any compatible issues.
Metalink has the definitive client/ server compatibility matrix. It will depend on the full version of the target database. Assuming "10g" means 10.2.0.2 or later, you should be fine with a 12.1 client. If the database is running something earlier than that, you'd generally need an earlier version of the client to be safe.
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I am using Oracle SQL Developer, I connect to my friend's DB and use it. Now I want to have a copy of this DB on my own PC to change it and test something. I installed Oracle. now how I can do this?
You can make use of Oracle Datapump.
Note. Oracle uses the term "schema" where for example mysql uses the term "database".
At your friend site:
expdp userid=system directory=DATA_PUMP_DIR dumpfile=myschema.dmp logfile=expdp_myschema.log schemas=MYSCHEMA
At your site:
impdp userid=system directory=DATA_PUMP_DIR dumpfile=myschema.dmp logfile=impdp_myschema.log
Best of luck,
Bjarte
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To the best of my knowledge, Oracle Apex looks similar to Oracle SQL Developer. For all of my database development life, I have only used SQL Developer.
Are there any specific feature sets available in Apex that are available in developing Oracle databases that are not in SQL Developer, and visa versa?
Welcome to SO.
SQL Developper is a GUI tool to run ad hoc queries, develop stored procedures and similar, more like a GUI version of, command line tool, sqlplus.
On the other hand Apex is more for prototyping/developping some custom applications that some end user (or admin) would access using the browser (HTML interface).