Complex integrity constraints are more challenging to enforce in Cassandra than they are in a relational database. In this article, Shel Burkow walks through four modelling examples in Cassandra involving constraints.
2020-03-17
Caching data is one way to improve application performance. In this article, Chandra Kudumla explains a service for caching data found in Azure called Azure Cache for Redis.
2020-03-16
I’m teaching my Mastering Index Tuning pre-con at SQLBits and SQL Saturday Iceland, and part of the prerequisites is that you’re already familiar with my How to Think Like the Engine class and my Fundamentals of Index Tuning class. To make that easier, I’m running the Fundamentals of Index Tuning class this week on the blog.
2020-03-13
17% of Enterprise respondents in this year's State of Database DevOps survey reported that DevOps has been adopted across all projects in their organization. This year’s State of Database DevOps report gave us some great insights into the landscape of Database DevOps. Kendra Little walks us through those insights specific to Enterprise organizations.
2020-03-12
I’m teaching my Mastering Index Tuning pre-con at SQLBits and SQL Saturday Iceland, and part of the prerequisites is that you’re already familiar with my How to Think Like the Engine class and my Fundamentals of Index Tuning class.
2020-03-12
SQL Server Machine Learning allows you to run R and Python scripts from SQL Server. When SQL Server 2019 was released, Microsoft enhanced the security for this functionality, but it caused some existing code writing to the file system to to break. In this article, Dennes Torres explains the security enhancement and describes three ways to work with it.
2020-03-11
Learn how to format your SQL Server results in Excel using conditional formatting to quickly identify patterns and issues.
2020-03-10
This article will explain how to import the data classification metadata for a SQL Server database into Data Masker, providing a masking plan that you can use to ensure the protection of all this data. By applying the data masking operation as part of an automated database provisioning process, you make it fast, repeatable and auditable.
2020-03-10
In this article in the series, Robert Sheldon provides a deep dive into HDDs.
2020-03-09
Phil Factor explains the factors that determine whether a column will allow null values, if you don't specify it explicitly in the column definition. If you rely on the default behavior established by your connection settings, you could be in for some nasty surprises.
2020-03-09
By gbargsley
Recently, I was in a technical interview where the topic of running PowerShell at...
By alevyinroc
I don’t recall where this came up (probably in SQLSlack), but I had a...
By Steve Jones
One of the parts of getting older that really sucks is I seem to...
Hi, we put together an extract that runs every 15 minutes against what i...
Comments posted to this topic are about the item Parameter Sensitive Plan Optimization in...
Comments posted to this topic are about the item Minimum Change Tracking Retention
If I am running this code:
ALTER DATABASE AdventureWorks2017 SET CHANGE_TRACKING = ON (CHANGE_RETENTION=xxx);What is the minimum amount of time I can set? See possible answers