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I am learning stuff so that i can enter data warehousing field.
I was reading the book on DW and it says knowledge of spreadsheets will be good for DW.
I have some time left before applying for jobs.
Should i start learning microsoft excel in advanced for DW
I know only basic spreadsheets not advanced
Do get into the Datawarehousing field, it is fundamental for you to be "datamart" litterate.
First start here :
http://en.wikipedia.org/wiki/Data_mart
Then, dare taking a look there :
http://www.information-management.com/infodirect/19991120/1675-1.html : it will give you an awesome step back and you'll be able to reply to questions like a pro, who has seen datamarts in real-life ecosystems.
And last, but not least, get as familiar as you can with the Map Reduce theory. Among others, take a jump here :
http://www.informationweek.com/news/software/info_management/226600088
Keep us posted about your job interviews.
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Program A is good at collecting data while Program B, in another language, is good at creating REST APIs. Is it possible to connect these two with a single database that A and B will read and write to? Performance for database operations is not really an issue in my case.
Sure this is possible. Databases typically can handle multiple connections from different programs/clients. A database does not really care which language the tool that is making the connection is written in.
Short edit:
Also most databases support "transactions". Which are used to cover that different connected clients do not break consistency of your application data while reading and writing in parallel.
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Can anyone articulate what the key differences are between SAS and SQL? I haven't worked much with SAS but went on a weeks training course, and basically it seemed like the equivalent but more convoluted and was able to do graphs.
Would appreciate some key bullet differences between them.
Standard SQL is a language to query, manipulate and define data in any(!) database. It is like the "latin language" of DB systems. Everyone knows it in order to perform standard tasks. SAS is like an extension to that with many functions.
I found a good document:
http://www.sascommunity.org/mwiki/images/5/52/CMSSUG-0506-SQL.pdf
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I need to prepare a Software Requirements Specification Document for a small enhancement within an JAVA application.
I have tried goggling for the same but found the samples for whole application whereas I am preparing SRS for a small enhancement within an application.
Can anybody suggest the links or suggestions for preparing the SRS.
As you realized by yourself what you're asked isn't a Requirements Specification, which usually covers the whole set of requirements for a software.
What you've been asked is a Change Request, and it must be merged in the existing SRS. However something tells me that there's no SRS for the software you're dealing with, as your management doesn't know the difference between both...
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I am in the process of evaluating whether BigQuery could be a good choice for some data processing we want to run periodically.
I do appreciate that BigQuery is still under heavy development and that improvements and fixes are likely to happen pretty often.
I woud like to know what would be the process should a release break a previously working process. I have read the SLAs, but they seem to be more oriented to downtime, rather than regression issues/bugs. Is there an option for paid support with SLAs?
Like most commercial services, Google applies rigorous build and test processes to ensure quality. If you have specific support requirements, we encourage you to contact Google's Cloud Platform sales team to discuss our premier offering.
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I'm wondering what are recent advances in relational database theory and related domains? I'm interested in new approaches, query languages (alternatives to SQL and/or extensions to it), products (proprietary and open source, though I'm much more interested in open source) and research projects developed in last years.
I am not versed in the subject but there was a very nice project based on XML structures over RDB that caught my eye a few years back and now seems to work perfectly.
Have a look at http://exist.sourceforge.net/ to see a nice approach to RDB used to build a more flexible storage system with XQuery as the query language. You should like it, it's open source.