DataGeek.blog

When an Index is More Than an Index: Clustered Indexes

Many RDBMSes have similar structures and concepts. In this post, I’m going to compare and contrast IBM Db2’s concept of a clustered index and MySQL’s concept of a clustered index.

Index vs. Clustered Index

An index is generally a way of organizing data in a way that it will be quicker to access than scanning through all of a table.… Read the rest

A New Turn in Ember’s Career

I’ve struggled to write this blog entry to appropriately convey all aspects of what I want to say. This is my third attempt, and I finally think it does things justice.

As part of my publicly shared data science journey, I’ve continued to read job postings, even while reasonably satisfied with my current job.… Read the rest

Db2u on Native Kubernetes!!

Db2u is here as a technical preview! I’ll cover the basics of how to set it up for a local sandbox, and leave the details and whys to future articles. IBM has stated that db2u will be available in GA later this year on Amazon EKS and Azure EKS, but meanwhile, I’ve got the technical preview up and running on my MacBook Pro!… Read the rest

Advent of Code 2021 in Db2 LUW SQL – Day 03!

Check out my general blog entry on Advent of Code 2021 for background and resources. In short, I’m working through the Advent of Code 2021 programming challenge using Db2 LUW SQL. This is the detailed entry for day 3. It’s posting on December 21.… Read the rest

db2u Without RedHat OpenShift – A Container-Native Database!

Earlier in 2021, I wrote an article on the big mistake I thought IBM was making by only offering their container-native version of Db2 (db2u) on RedHat OpenShift.

Well, that article and tirelessly asking questions of EVERY IBMer I could get to listen to me (seriously, I could hear eyes rolling when I asked for the umpteenth time) has finally worked!… Read the rest

Advent of Code 2021 in Db2 LUW SQL – Day 01!

AOC Day 1
My day 1 solutions are available in my GitHub repo.… Read the rest

Advent of Code 2021 in Db2 LUW SQL

This year, I’m going to be working through the Advent of Code challenges in SQL and sharing my progress here on the blog. I don’t expect to complete each challenge and the blog entries on them on the same day they are released – I’m not competing on time, I’m just using this to share SQL techniques.… Read the rest

Db2 Basics: Buffer Pools

What is a Buffer Pool?

A buffer pool is one of the most critical memory areas for a Db2 database. Buffer pools are used to cache data in a way that the data can be reused by other connections. They do not store the results of Query A and Query B, but they store the data pages used to produce those results.… Read the rest

DataGeek.blog

When an Index is More Than an Index: Clustered Indexes

Index vs. Clustered Index

A New Turn in Ember’s Career

Db2u on Native Kubernetes!!

Advent of Code 2021 in Db2 LUW SQL – Day 03!

db2u Without RedHat OpenShift – A Container-Native Database!

Advent of Code 2021 in Db2 LUW SQL – Day 01!

Advent of Code 2021 in Db2 LUW SQL

Db2 Basics: Buffer Pools

What is a Buffer Pool?

5 things that made me a better DBA

Hello world!

Instance Creation in WebSphere Commerce 7 (DB2 9.5)