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I would like to learn DB2 as my work is demanding these skills now... I have prior programming knowledge but that is limited to VBscripting and Jscripting
I am complete new to the DataBase segment.. I have no clue of SQL or Oracle or DB2 and stuffs....
Can Someone please mentor me here ... So that I get fair Idea on where to Start and how to accomplish my Goals...
Appreciate your quick help.
Thanks
Jey B
Visit DB2 University. Some of their courses are free, although I don't see any right now. You can download a free version of DB2. You can also download several textbooks. Database Fundamentals might be a good place to start.
I don't think any of their downloads require registration, but I could be wrong about that.
Edit: I was wrong about that. Textbooks don't seem to require registration, but DB2 Express-C does and the development tools do.
Check out Fundamentals of Relational Database Design for some information on the best way to design databases. You may not be doing any design at the moment, but understanding these basics is key!
Also, Understanding SQL Joins is mandatory reading if you are going to be writing queries.
DB2 does have some language specific exceptions when writing queries that you will just have to learn as you go. For instance, most DBs use the TOP command:
SELECT TOP 3....
to get just the first 3 records.
DB2 requires this syntax at the end of the query:
FETCH FIRST 3 ROWS ONLY
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I've been really interested in scala for awhile. Now that Intellij 13 has better Scala support it seems like its becoming more and more practical to work with. For example they have SBT support.
Now I have a bit of a finicky learning style. If I could find an operating example of a Scala application with Lift using
SBT for build
A relational database and ORM
Lift
I'd be able to pick this up a lot faster. A lot of the demos I've found are way way too small to be usefull.
Anybody have a suggestion for where to find a fully features open source app in Scala?
They have some Lift "quickstart projects" here. Some more examples here. And of course, Lift's Github, where you can find project templates (more specifically, look at this link).
There is also Typesafe, but they offer Play instead of Lift.
Lift has 2 db layers. They are mapper and record. Record is little more modern in my opinion.
The next thing: record can have different backends for work with database. I use squeryl ( good introduction is here - http://squeryl.org/introduction.html )
And the last thing, you can use different databases, of course: mysql, postgresql, mongodb, etc, you see...
What about me - I use lift squeryl record with postgresql.
What about examples:
Not so bad full _simple_ example (book shop but without user as i remember) is here, see https://github.com/migo/test-squerylrecord .
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Need to know about the best Managed File Transfer tools available (Open source or licensed) in market considering all the major constraints. Most importantly it should be used for enterprise integration with high availability. I have worked with some MFT tools but each has its own advantages and disadvantages.
I'm sure you've done the Google research on MFT solutions, so I will assume you're looking for personal opinions to validate the direction you're already headed.
I've evaluated Linoma, IpSwitch, Townsend, GlobalScape, Liaison, and Axway. I've got a comparison table somewhere that I put together for our analysis that outlined what I needed in a solution and found that Linoma best fit the bill.
I've now used Linoma's GoAnywhere MFT solution for a few years and am still very pleased with it. The company keeps up with the changing technologies, it has very powerful scripting capabilities yet keeps it simple to manage and administer. Key management, scheduling, alerts, logging, role management, HA integration, data manipulation, multi-platform, mobile app, and more are some of the many functions. But one of the best things about Linoma is their dedicated support team. They are the best I've worked with.
Here's a link to their information: http://www.goanywheremft.com/products/director
Good luck in your search.
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I would like to learn how to properly design MongoDB documents. I know about MongoDB manual with special section about document design. Where can I find some practical examples of documents for social networks, cms sites, logging applications? Code that I can look into and learn from.
Thanks for your time and have a nice day!
Please check this out if you really want to see a detailed approach from mongodb's creators; this is really good: http://docs.mongodb.org/ecosystem/use-cases/ .
MongoDB has some great talks with examples. I would particularly concentrate on the schema design talks.
I bought a book on Amazon titeled MongoDB Applied Design Patterns from Rick Copeland. It is a "short" book with practical use cases on how to use MongoDB. It describes practically how to use MongoDB in CMS, social networking, online gaming, ecommerce, etc... Exactly what I was looking for. :)
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Please recommend free visual modelling tool with reverse engineering feature if such exists.
I've been happy with SchemaSpy for visual modelling. It produces handy reports on the DB structure and relationships, good structural diagrams, and more. See these sample pages from a simple demo database, including this structural diagram . It also has the handy ability to produce smaller structural diagrams specific to each table, showing relationships with that table by one or two degrees of separation.
SchemaSpy works great with PostgreSQL. Just make sure you put the path to the PgJDBC driver jar on the SchemaSpy command line as -dp /path/to/PgJDBC.jar.
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I have been tasked with researching and implementing data warehousing for our ERP system (it's IFS if anyone happen to have prior experience). There is 137GB of data over more than 5000 tables.
Does anyone have any experience of data warehousing a large ERP system and can you recommend any tools or provide any advice on the matter. It's not something i've ever dealt with before.
That's a huge topic. We went with SQL-Server and Analysis Services for our warehouse (for Oracle eBiz ERP) - great tools and platform IMHO.
You really need to figure out how you're going to use the DW and based on that figure out what gives you the features and tools that you need. The ERP has little relevence because ultimately you're going to be transforming the data from the ERP into whatever you need in the DW and that's where the real work comes in.