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Can anyone recommend some good resources that highlight the differences between Oracle and the AS/400 database?
I am trying to help someone with a lot of AS/400 experience implement an Oracle installation, and they need some guidance.
A book or online resource would be ideal.
I've done this a fair few times and the solutions out there really depend on the environment (enterprise / mission critical or development). The BEST way would be the Oracle AS/400 Gateway. Here are some important links in that area:
Allow AS/400 apps to access oracle with the Oracle Access Manager:
Installation Guide for the AS/400 Oracle Access Manager
Allow your Oracle apps to access AS/400 tables and be queried using Oracle:
Oracle Transparent Gateway for DB/2
^^^Those products are fairly expensive but super powerful.^^^
Alternately, here are some more academic approaches to the situation:
Here's a technical comparison of the two technologies... It's a little propagandaish*.
Technical comparisons of Oracle and DB/2
Here's a document written from the opposite point of view - Someone moving from Oracle to DB2. I still find it's useful information:
Leverage your Oracle 10g skills to learn DB2...
And another IBM link that has some really great information all around:
IBM Developer Network Search Results
Hope this helps!
*Yes, I know propagandaish is not a real word.
These links are not AS/400 specific, but generally a good place starting with Oracle:
http://tahiti.oracle.com
http://asktom.oracle.com
Simple Talk Publishing have just set up http://www.oracleoverflow.com/, which is a dedicated Stack Exchange site. You could try posting your questions there?
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I am lookin for a documentation on Oracle forms and reports? I have been trying to find out for quite some time, but could not find any.Is there any from Oracle or any other good source?
Well, Forms nor Report didn't change a lot (from developer's perspective) during their history.
up to 3.0 version, it was character mode tool. I doubt you use any of these versions
from 4.5 to 6.0, it was a modern GUI, running in client-server architecture. That's not being used much any more; however, I know (by reading Oracle Forums) that people still do use it
since 10g onwards (the first version was 9.0.4, but its market name was 10g), Forms applications are deployed on the web (true, you can do that with version 6 as well)
I guess you're not using anything lower than version 6. If that's so, as I said - from developer's point of view - you still have data and control blocks, triggers, procedures; in Reports, there are still queries, frames, anchors and stuff. Almost any documentation would do, more or less.
You should probably want to read documentation related to version you use. Here's Documentation for Oracle Forms and Reports (12.2.1.3.0).
Also, note that both Forms and Reports have really good online help system - navigate to their "Help" menu, open it and start reading or simply search for what you're interested in. There are a lot of examples within help.
Nearly all the current and previous Forms/Reports docs are linked from the Forms product page on Oracle.com
https://www.oracle.com/application-development/technologies/forms/forms.html#docs
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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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I am new here, and i hope that i could find answers for my questions related to open source reporting systems.
Is it possible to change in the programming logic of 'Tableau desktop'? I am asking this because i need to make changes that
enables me to log users' interactions with the system (Tableau
Desktop).
Is it possible to perform Big Data analysis by combining Tableau Desktop with Hadoop or Spark?
If the answers for the above questions is no, then could you please
recommend any other open source (free) reporting system that satisfy
these requirements.
Thank you in advance and best regards to all of you
Tableau has drivers to connect to several "big data" No SQL databases, and has added a Spark SQL driver as of Tableau version 8.3.
The full list of supported drivers can be found on Tableau's website at http://www.tableau.com/support/drivers
Your question about logging user interactions is not at all clear, but you might have better luck instituting logging at the database level instead of at client level.
In response to your question regarding user interactions, I'd recommend you take a look at the views_stats table in the Tableau Server database.
Instructions for connecting to the 'workgroup' database: http://onlinehelp.tableau.com/current/server/en-us/adminview_postgres_connect.htm
Versions 8 and 9 includes a Spark connection
As far as logging users goes, Tableau Desktop is designed as a single license tool for developers and shouldn't need to be logged.
If you're interested in logging users, you may be thinking of Tableau Server, which has built-in functions for things like that as well as a REST API, which has some additional functions.
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We deal with scientific research data and we have volumes and volumes of data put together in different template file formats (excel, csv, txt, xml etc). We were using old legacy C programs (developed in-house) to load these data into our databases. (We use ingres as our DBMS). Are there any open-source software that is available for ETL (extraction, transformation , loading) process?. What have been your experiences, if you have used any?
Based on what other Ingress users are saying, the 2 that are fairly well spoken of are Talend and Pentaho.
Pentaho site: http://www.pentaho.com/
Talend site - as already mentioned by Paul: http://talend.com/index.php
Here is an open source solution for importing multiple file formats into a database system or other system type.
http://talend.com/index.php
At the company I work at we use SQL Server Integration Services which does similar things but it should come with SQL Server if you're using that.
There is an opensource set of bi and etl tools - have a look at Pentaho - I believe it's etl tool is called "kettle" - pretty rich set of functionality, gui tools for the etl process.
We use DBMS/COPY but it looks like it is no longer in production. It has a GUI interface for setting up scripts or you can hand-write them.
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I am a 3 year experienced software developer with fairly good TSQL knowledge in SQL Server. I am looking for expanding skill to Oracle also. What all things I should learn to say confidently thaty 'I know Oracle'?
Any free online certification available?
Pease share your thoughts..
Thanks
Lijo
Assuming you want to expand your Oracle application development skills (and not your DBA skills) you could look at gaining the 1Z0-047 Oracle Database SQL Expert certification. A good study guide for this is OCA Oracle Database SQL Expert Exam Guide: Exam 1Z0-047. I used this in combination with the Oracle 11g SQL Reference to pass 1Z0-047.
Working with Oracle in production for a couple of years will also help you to expand your Oracle skills.
As an introduction to essential Oracle concepts and techniques have a look at Expert Oracle Database Architecture: 9i and 10g Programming Techniques and Solutions by Tom Kyte.
As to "free online certifications", I'd not bother with those (if any).
They have no value, are impossible to verify that the person claiming to hold them actually does and are not recognised by pretty much anyone.
At best they could serve as practice for the real exams, at worst they'll give you a bad impression about your skills (as they may well have bad questions requiring factually incorrect answers).