by Ember Crooks | Dec 6, 2022 | DB2, Db2vsMySQL, Featured, mysql, sql
Every RDBMS has areas where the differences from other RDBMSes are noticeable, and this is one of them between Db2 and MySQL. Most RDBMSes have quirks to the way SQL is written, and this is certainly true of Db2 where some things were there before the SQL-92 standard...
by Ember Crooks | Nov 8, 2022 | DB2, Db2vsMySQL, Explains, Featured, mysql, sql
The goal of this article is to to take one query and use the explain facilities of Db2 to walk through it, and then do the same with MySQL, and then show some of the optimizations I might make for the query and why.… Read the rest
by Ember Crooks | Nov 3, 2022 | DB2, Db2vsMySQL, Explains, Featured, mysql
I’ve been spending some time working with indexes as I learn MySQL, and there were a few things I thought were were worth mentioning. As always, I’m writing from my own knowledge with deep experience in IBM DB2, and as a learner when it comes to...
by Ember Crooks | Oct 27, 2022 | DB2, Db2vsMySQL, Featured, mysql
I’ve spent some time understanding how MySQL structures tables and indexes, and wanted to share what I’ve learned. This is not the structure as created in the CREATE TABLE or CREATE INDEX statements, but how that data is generally structured on disk, both...
by Ember Crooks | Jun 9, 2022 | DB2, Db2vsMySQL, Featured, mysql
I’m a couple of months into working with MySQL, and thought I’d share some resources and thoughts on what I’m learning and what is working. At least half of that time was dedicated to a very in-depth onboarding process that barely mentioned a...
by Ember Crooks | Mar 17, 2022 | DB2, Db2vsMySQL, mysql
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...
Recent Comments