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Blog

Welcome to Datavail’s Blog, where you can read the latest insights, tips and opinions of our experts on all things data and technology.

Author: Craig Mullins
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TIMESTAMP versus DATE/TIME

Is it better to use a single TIMESTAMP column or two columns, one DATE and the other TIME? Craig Mullins advises in latest blog post.

Craig Mullins | March 28, 2018

Null Follow-up: IS [NOT] DISTINCT FROM

Datavail consultant Craig Mullins blog on Null Follow-up.

Craig Mullins | March 15, 2018

Null Troubles

Understanding what nulls are, and how best to use them, can help you to create usable db2 databases and design useful and correct queries in your db2 applications.

Craig Mullins | February 28, 2018

Db2 Best Practices

How do organizations manage their database infrastructure? Craig Mullins takes on db2 best practices in new blog post.

Craig Mullins | February 13, 2018

What is Production Data?

Production data is information that is stored and used by professionals to conduct business processes. It must be managed to ensure its value to the organization

Craig Mullins | January 16, 2018

Some New Year’s Resolutions for DBAs

Datavail consultant, Craig Mullins weighs in on resolutions that DBAs can stick to in the new year.

Craig Mullins | January 2, 2018
Db2, DBA

Which is better? “BETWEEN” vs “

As with most Db2 (and, indeed, IT) issues, the correct answer is “it depends!” Let’s dig a bit deeper to explain what I mean.

Craig Mullins | December 20, 2017
DBA

Evaluating a DBA Job Offer

It’s inevitable that DBAs will change jobs during the course of their careers. Craig Mullins outlines questions to ask a potential employer.

Craig Mullins | December 7, 2017
dba db2

Replacing UNION with CASE

CASE statements are very powerful and you should use them when you can to create elegant and optimal SQL in your DB2 applications.

Craig Mullins | November 22, 2017
DB2 performance

Quick Thoughts on DB2 Performance

Database performance issues are all about change. Craig Mullins explains in latest blog post.

Craig Mullins | November 9, 2017
DBA, DB2

Reading Things That Aren’t There… and Missing Things That Are!

New blog post takes you through a couple DB2 features in order to help you read your data in the database correctly.

Craig Mullins | October 26, 2017
database

On the Importance of Choosing the Correct Data Type

Most DBAs have struggled with the pros and cons of choosing one data type over another. This blog post discusses different situations.

Craig Mullins | October 11, 2017
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