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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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Can we convert PostgreSQL (database and dump) to Oracle without lose information and without using another application from the Internet?
Yes, you should export PostgreSQL database in plain SQL format with something like:
pg_dump --column-insert database > database.sql
and adapt the generated SQL file to Oracle.
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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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Can any one please help me for solving this Issue. I need to Export a dump in Oracle 11g and Import in Oracle 9i. I sucessfully Exported in Oracle 11g , But Upon Importing in Oracle 9i, its showing error. Please provide me solution for this. THANKS IN ADVANCE
You probably get the error because you created the export file using the 11G version of the export utility.
Give it a try by using the Oracle 9i version of the export utility to create the export.
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When I was a student we studied Oracle Database 10g: SQL and PL/SQL textbooks. At that time I asked the lecturer if I can take lab files. And he told me that they are freely available at Oracle website. But now I can't find them. I mean a filled database. At that time it contained data about King, Kochar, De Haan etc and about their departments.
Any Oracle version would suit. 10g would be fine. And newer filed would be ok as well.
Thank you in advance.
you can install the sample schemas when you initially create the database or you can install them afterwards if the database already exists.
First you can try looking in $ORACLE_HOME/demo/schema/. The sample schema install scripts should be in there.
If you need to download them from Oracle, head to their website under the Downloads section for Oracle Database, and select the version and platform you are using currently. The example schemas are in the Oracle Database Examples zip file.
There should be similar instructions for each version, but the link to 11g is below.
Oracle® Database Sample Schemas 11g Release 2 (11.2)
http://docs.oracle.com/cd/E11882_01/server.112/e10831/installation.htm
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A have some step by step description where downloading of OracleXEUniv.exe is one step.
But I cannot find what is it for? What is functionality of this file?
Than you.
OracleXE is the free version of Oracle's main database product. The "Universal" simply means it will install using the Universal character set instead of the Western European character set.
Oracle Database Express Edition (Oracle Database XE) is an
entry-level, small-footprint database based on the Oracle Database.
It's free to develop, deploy, and distribute; fast to download; and
simple to administer.
http://www.oracle.com/technetwork/database/express-edition/overview/index.html