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This series is designed to be a database reference guide, covering databases from the very beginning. We're calling it Database 101. There will be eight sections in this series. Part 1: Database Glossary of Terms Let's start with some background for people who know...
It can be helpful to compare and contrast two similar pieces of software, such as MySQL and MariaDB. Competition in the open business market often leads to innovation and breakthrough technology. Yet, when two competing companies go head-to-head, offering similar...
Replication is a great way to copy tables/data from one server to another so you can do reporting on the second server. Within replication tables, stored procedure, functions, views, and indexed views are called articles but in this blog tables and articles mean the...
AlwaysOn Availability Group (AG) is one of my favorite features in SQL Server and is worth considering when using SQL server 2012 or greater. One of the nicest features in AlwaysOn AG is that in a single subnet environment it can be totally transparent to your...
What do you do when something that has been working for months suddenly stops working and gives you a SQL Error 8623? Worse yet, what do you do when that error message tells you to either rewrite your extremely complex query or spend some cash on a Microsoft customer...
Many people have heard that the traditional DBA role is changing. This is one of the hottest topics out there right now. One way that Microsoft is moving forward with this way of thinking is SQL Operations Studio (SOS). When it was first released in preview mode, many...
Arithmetic overflow error; converting it to data type numeric Understanding Decimal and Numeric arguments The problem: Entering a number in a field that is data type of decimal (5, 3) works for values like [85.200] but not others like [500]. The Cause: The arguments...
Azure SQL has introduced the ability to set firewall rules at the database level. A database firewall is different than the server firewall which can be configured via the Azure Portal. The database firewall gives you the ability to not only limit connections at the...
What is Collation? Collation is a set of rules dictating how each group of characters within SQL Server is treated. A list of collations and their definitions can be found using the following query. SELECT name, description FROM sys.fn_helpcollations() WHERE...
How Db2 Handles SQL SQL is a powerful language in the hands of the right RDBMS. One of SQL's strengths is that you specify what data you want returned without specifying what file, disk, san, or sector that data is stored on. Because we describe the result set we...