We know how difficult managing a database can be. Luckily, we’re here to share our experiences troubleshooting, building, improving, and operating them. Browse blogs below, and feel free to comment!
In this article, you will learn best practices on migrating on-premise servers and applications to Azure. The push to the cloud is expediting, and it is essential to understand best practices and how to migrate on-premise servers and applications to Microsoft Azure....
When I was learning about Microsoft SQL Server issues a DBA needs to understand, I was reading about deadlocks. At first, I was confused because it sounded like the definition of blocking, which I was already more familiar with. I re-read it a couple of times and...
The purpose of this article is to provide guidance on the various ways available for getting basic information about locking events in a Db2 database. Where possible the information gathered allows for targeting a specific table. The information provided by these...
MySQL 5.6 reached its end-of-life (EOL) in February 2021. If you haven't upgraded to MySQL 5.7, you are not the only one. It can be an intimidating endeavor. There are configuration, system table, server, Innodb and SQL changes to consider. And, documentation is not...
When performing health checks on a database, I look at how many users are granted SUPER privileges. If you're reading this, you know why. SUPER privileges pose a potential security risk and should be limited to a few users that need this far-reaching access to...
I recently faced an interesting challenge. I was working to replace (rebuild) a view with updated DDL, but when executing the CREATE OR REPLACE VIEW statement, Db2 returned error code SQL0551N. This error means that the user ID doesn't have authority to perform the...
For this example, the following software versions were in use: Ubuntu v20.04.3MySQL server v5.7.35Percona XtraBackup v2.4.24 It is important to note that Percona XtraBackup 8.0 is not compatible with MySQL version 5.7 and was introduced for use with MySQL version 8.0....
This blog article will explain what the SST method choices are and what you need to consider when choosing one over another. To start with, the wsrep_sst_method is a configuration parameter used with Galera Clustering. This parameter tells the database server which...
Encrypted connections for MySQL replication are the default as of 8.0. The following simple example shows a basic setup for encrypted replication using Ubuntu 20.04 and MySQL Community 8.0.27. The steps may be similar for other Linux distributions. The necessary files...
With the release of Db2 11.5.7.0, IBM has finally started providing cryptographically signed installation image files. This is important because it provides a means to verify that the installation image has not been tampered with or corrupted during download....