Articles

External Article

“Oops, I Lost My Indexes in Azure SQL DB.”

I got an interesting request for consulting, and I’m going to paraphrase it: We were using Azure SQL DB with automatic index tuning enabled for months. Things were going great, but… we just deployed a new version of our code. Our deployment tool made the database schema match our source control, which… dropped the indexes Azure had created. How do we get them back?

2023-09-25

SQLServerCentral Article

How Would You Design This: Scheduling Classes

One of the challenges for many database developers is coming up with a good design that not only meets the specifications but also performs well in queries. Relational databases often seek some level of normalization, which reduces the update load for a system but might require more effort work from developers to write queries. Many […]

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2023-09-22

2,284 reads

External Article

PostgreSQL Basics: Getting started with psql

PostgreSQL has a separate command-line tool that’s been available for decades and is included with any installation of PostgreSQL. Many long-term PostgreSQL users, developers, and administrators rely on psql to help them quickly connect to databases, examine the schema, and execute SQL queries.

Knowing how to install and use basic psql commands is an essential skill to have for anyone that will connect to PostgreSQL.

2023-09-20

SQLServerCentral Article

GENERATE_SERIES() Breaks Minimal Logging

tl;dr The title says it all. Prologue One of the keys to my personal learning is that, very early in my database career, I taught myself how to make lot’s of rows of Random Constrained Data in a comparatively short time. With the help of a few good folks over time, the method has been […]

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2023-09-18

4,122 reads

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Implicit Conversions Cripple SQL Server

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BIT_COUNT() III

By Steve Jones - SSC Editor

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Question of the Day

BIT_COUNT() III

In SQL Server 2025, I run this code:

select bit_count(-1)
What is returned?

See possible answers