Designing the Data Mart – Part 2 is a post from: Database Geek Blog

Continuing from Part 1.

So now we have our transactional model and a basic user story:

Our first request from the business for our data mart is that they want to be able to query all of the orders by date, by customer and/or by region (state, city or country). They want to be able to aggregate (sum and average) across

… Read the rest!

Calculating Business Days and Business Days Between is a post from: Database Geek Blog

From the Database Geek.

I recently had a requirement to populate the day dimension of a data mart (I won’t put all of the code here as it’s pretty large). That’s not that big deal but part of the requirement was to set several columns: BUSINESS_DAY_FLAG, BUSINESS_DAY_NO and BUSINESS_DAYS_REMAINING_NO.

• The BUSINESS_DAY_FLAG is Y is the date is MON-FRI and N

… Read the rest!

Oracle Advanced Replication: A Definition in Plain English is a post from: Database Geek Blog

What is Replication?

According to Webster’s Online, the definition we mean is: 3 a : COPY, REPRODUCTION b : the action or process of reproducing

Replication is simply copying data from one database to another. This could be a subset of the data or a complete copy.

I’m going to use insert for my examples but any DML can be… Read the rest!

uCertify Oracle Certification Software Review is a post from: Database Geek Blog

From the Database-Geek.

In addition to frequently being asked to recommend books for newbies to Oracle, I am also asked for guidance on certification. Basically, what materials are available and worth purchasing. I used Self Test software and the Sybex books when I was working on my certification. That was back in the 9i days. If you are working on 9i certification, I… Read the rest!

Comment by LewisC on 10 Tips For Complete Database Newbies is a post from: Database Geek Blog

Thank you. Comments like that are exactly why I do this.

LewisC

!***! Entry Link: 10 Tips For Complete Database Newbies!***!

Comment by Kalai Selvi on 10 Tips For Complete Database Newbies is a post from: Database Geek Blog

Wow. I’ve been toying around the idea of learning Oracle. Have read few manuals and tried my hands on 9i. But then later I moved on to .Net and now I’m back to Oracle and am looking to improve my hands on 10g. And after going thtrough your blog, it’s kinda motivating and guiding. Nice posts. Thanks… Read the rest!

Comment by LewisC on What Should I Learn? 6 Things That Will Make You better! is a post from: Database Geek Blog

Cathy,

Thanks for the comment.

I think 4 is the hardest for many people. It was the hardest for me. 6 is hard for many people too.

Good luck in 2009!

LewisC

!***! Entry Link: What Should I Learn? 6 Things That Will Make You better!!***!

Comment by Cathy Gibbs on What Should I Learn? 6 Things That Will Make You better! is a post from: Database Geek Blog

THANK YOU Lewis C. This is a nice listing of how to start the 2009 work year tomorrow. I have copied this listing of 6 and following through. Full stop.

Each of these steps are actions that I have either done half-heartedly and I need to complete what I have started,… Read the rest!

What Should I Learn? 6 Things That Will Make You better! is a post from: Database Geek Blog

LewisC’s An Expert’s Guide to Oracle Technology
I want to be a DBA, what should I learn?
I want to be an Oracle developer, what should I learn?
I want to get into IT, what should I learn?
I want to get promoted, what should I learn?
I get questions …

Learn SQL – The Guide to DML is a post from: Database Geek Blog

LewisC’s An Expert’s Guide to Oracle Technology
My SQL book is now available for print. You can see it on my CreateSpace e-store. The book is SQL DML – SQL Starter Series Book 1. This is a book for beginners. It takes someone step by step through TC…

Learn Oracle: Triggers is a post from: Database Geek Blog

LewisC’s An Expert’s Guide To Oracle Technology

Today I will be writing about triggers. One of the questions I get fairly often is “what is the difference between a function, a procedure and a trigger?” I already wrote about functions and procedures in Learn Oracle: Procedures and Functions. You should probably read that one before you read this post.

What is a trigger?… Read the rest!

Learn PostgreSQL: Newbie Questions is a post from: Database Geek Blog

A poster on the PostgreSQL pgsql-general mail list asked some good questions that might be important to anyone. The general mail is a:

General discussion area for users. Apart from compile, acceptance test, and bug problems, most new users will probably only be interested in this mailing list (unless they want to contribute to development or documentation). All non-bug related questions

… Read the rest!

Learn Oracle – Part 1: Getting Started is a post from: Database Geek Blog

Probably the most popular question I am asked is something along the lines of, “I just graduated college and want to learn Oracle. How can I do that?” Sometimes, it may be, “I have worked as a functional on an Oracle Applications implementation and want to learn technical.” The question that some times frightens me is, “I heard I can make… Read the rest!

Learn EnterpriseDB – Step 1 is a post from: Database Geek Blog

So you’ve decided to learn/evaluate/use EnterpriseDB. That’s great. The first thing you need to do is get it and install it.

Download

To get EnterpriseDB, you need to navigate over to the EnterpriseDB download page. If you haven’t already signed up for an account, you will need to get one. It’s free and, by signing up, you will also have access to the… Read the rest!

Eight Steps on the Collaborative Way is a post from: Database Geek Blog

Here is an entry from a Project Manager blog called: Eight Steps on the Collaborative Way. I found it to be a very interesting article and very true. I haven’t seen this list before but it’s contain items that I try to include in my development projects, whether I’m working in a project manager role or not. Definately worth a read.

Lewis… Read the rest!