Learning Spark SQL String Functions with Explanations and Code Examples
Learn how to use different Spark SQL string functions to manipulate string data with explanations and code examples.
One more reason to use foreign key constraints
Since the title might be considered a bit vague, I don’t want you to wade through the article to figure it out. I will spare you the typical clickbait introduction, with me telling you what a foreign key constraint is, and why it and all the other constraint types provided by relational engines are useful. […]
Good Luck is Needed with Old Versions
Today, Grant talks about reasons that companies don't upgrade.
What happens when we drop a column on a SQL Server table? Where's my space?
You have dropped a column and wondering why you haven't recovered any space? Let's take a look.
SQL Logic
In this article, I will discuss the history and thinking behind several types of logic that are typically associated with writing relational database code.
Stairway to Advanced T-SQL Level 5: Turning Data On Its Side Using PIVOT Operator
The PIVOT operator was added to the Transact-SQL language in SQL Server 2005. It allows you to turn your row data on its side, so it can be presented as column data. This is useful when you want take unique column values and have them displayed as column headings, where the column headings are associated with summarized values displayed below each column heading. In this article I will be exploring how to use the PIVOT operator.
Toilets and Your Systems
Today, Grant Fritchey compares a disaster caused by a toilet to technical debt in IT.
Does Your GROUP BY Order Matter?
Sometimes when you do GROUP BY, the order of the columns does matter. For example, these two SELECT queries produce different results:
Seagull Management
Management is important to ensuring the success of a team. Steve talks about an anti-pattern that is often used by poor managers.
Unlocking Power with Updatable Views in SQL Server
An updatable view in SQL Server is a view that allows modifications such as INSERT, UPDATE, or DELETE operations on the underlying tables through the view.
Blogs
Are ABORT_AFTER_WAIT's victims logged?
By Zikato
In SQL Server, using the KILL command to terminate a session results in an...
Part 2: The Modern Azure Data Warehouse – ADF and ADLS
In today’s data-driven world, having the right tools to manage and process large datasets...
A New Word: Flichtish
By Steve Jones
flichtish – adj. nervously aware how much of your self-image is based on untested...
Forums
Backup with Checksum Show No Issues, While DBCC CHECKDB Reports Errors
I took a backup with the CHECKSUM option, which was successful and showed no...
Realities of Predictive Analysis
Comments posted to this topic are about the item Realities of Predictive Analysis
Linked Server Product Name?
Just came across something weird. Was wondering if anyone else has ever seen this....
Question of the Day
Creating Statistics on XML
I have a table in SQL Server 2022 that is an XML data type. I have an index on this column and want to create statistics using CREATE STATISTICS for some of the data in the column. What should I do?
See possible answers