Alternatives To SQL-2022 Built-in function GREATEST
If you haven’t already heard, SQL 2022 has introduced a new built-in system function called GREATEST. Simply […]
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Working with MySQL constraints
MySQL provides a set of constraints that you can include in your table definitions to help ensure […]
Microsoft Fabric: Lakehouse and Data Factory in Power BI environment
Microsoft is merging Data Factory and Power BI Dataflows in one single ETL solution. It’s not a […]
Orchestrating a MySQL Container on Kubernetes
If you’ve been using MySQL for a while and want to learn how to orchestrate MySQL containers, […]
A Beginners Guide to MySQL Replication Part 5: Group Replication
This article is part of Aisha Bukar’s 6 part series on MySQL Replication. The entries include: Part […]
Learning PostgreSQL With Grant: Introducing VACUUM
While there are many features within PostgreSQL that are really similar to those within SQL Server, there […]
How much has data technology changed over the years?
The simple answer to this question is “a lot.” The funny part, however, is that everyone who […]
Working around schema drift in SQL Server
At Stack Overflow, our environment has multiple implementations of a largely – but not 100% – identical […]
Database Concurrency in PostgreSQL
Concurrency control is an essential aspect of database systems that deals with multiple concurrent transactions. PostgreSQL employs […]
What Is an Execution Plan and How to Find It ...
In the last blog (When PostgreSQL Parameter Tuning is not the Answer), we compared several execution plans […]
Building REST APIs in Go with Mux and GORM
In modern software development, Application Programming Interfaces (APIs) are essential for building scalable and flexible systems. APIs […]
Running Queries Across Many SQL Server Databases
A challenge that reappears periodically in the world of databases (especially database management) is the need to […]
Exporting data from a MySQL database using SELECT…INTO OUTFILE
This article is part of Robert Sheldon’s continuing series on Learning MySQL. To see all of the […]
Querying PostgreSQL: Learning PostgreSQL with Grant
Writing queries to retrieve the data from a database is probably the single most common task when […]
Optimizing Queries in MySQL: Optimizing Updates
In the previous parts of these MySQL optimization series, we’ve told you how queries work on a […]
Managing Test Data for Database Development
In coming up with a strategy for managing test data, first you need to understand what the […]
The GROUP BY Clause
When you’re learning SQL DML, the most complicated clause is typically the GROUP BY. It’s a fairly […]
When Parameter Tuning is not the Answer
So much about parameters tuning, but does it always help? Welcome to the third and final blog […]
Using a Subquery in a SELECT statement
This article is part of Greg Larsen’s continuing series on Learning T-SQL. To see all 10 items […]
Snowflake: A Cloud Warehouse Solution for Analytics
This article explains what Snowflake data warehouse is and how it is different from other traditional data […]
Working with MySQL transactions
MySQL transactions provide an effective method for executing multiple statements as a single unit, making it possible […]
Manipulating Data In PostgreSQL: Learning PostgreSQL with Grant
So far in the series I’ve shown how to create databases, tables, constraints, indexes and schema. Now, […]
A Guide to INSERT, UPDATE, and DELETE Statements in Oracle
In this article, we’ll be focusing on three of the most used SQL commands in Oracle: INSERT, […]
SQL Server 2022: Capture SQL Anti-Patterns
One of the new Extended Event available in SQL Server 2022 is the query_antipattern. This extended […]
T-SQL Gap-Filling Challenge
A student of mine sent me a T-SQL challenge involving gap-filling of missing dates and balances. I […]
Data Intelligence on light speed: Microsoft Fabric
This article is based on exciting information just released at Microsoft’s Build conference on May 23, 2023. […]
Optimizing MySQL: Adding Data to Tables
Welcome back to the MySQL optimization series! In case you haven’t been following this series, in the […]
PostgreSQL Basics: A Template for Managing Database Privileges
In the first two articles of this series about PostgreSQL privileges, we reviewed how to create roles, […]
Changing log growth strategy in SQL Server 2022
When I first saw a bullet item stating SQL Server 2022 would support instant file initialization for […]
Uncovering the mysteries of PostgreSQL (auto) vacuum
Welcome to the second blog of the “magic of parameters” series. In the first entry, I covered […]
Importing data into a MySQL database using LOAD DATA
Database and development teams often load data from plain text files into their MySQL databases. The files […]
PostgreSQL Basics: Essential psql Tips and Tricks
Having access to the psql command-line tool is essential for any developers or DBAs that are actively […]
How to secure legacy ASP.NET MVC against Cross-Site(CSRF) Attacks
Cross-Site Request Forgery (CSRF) attacks are widespread, and even some BigTech companies suffer from them. Netflix suffered […]
PostgreSQL Schema: Learning PostgreSQL with Grant
An important aspect of building and managing a database is organizing the objects within your database. You […]
Modifying MySQL data from within Python
In the previous article in this series, I introduced you to how to access MySQL data from […]
GENERATE_SERIES: My new go-to to build sets
I have come across a lot of use cases for manufacturing rows on the fly, aside from […]
Using Virtual Network Data Gateways to Secure Access to Azure ...
Power BI and Azure are two related services, but with a considerable independence between them. Power BI […]
Paging Data in T-SQL
Sometimes when working with very large sets of data, you may not want to return all of […]
The SELECT Statement in Oracle
The SELECT statement is used to retrieve information from a database. Following the execution of a SELECT […]
Are PostgreSQL memory parameters magic?
Configuration parameters are the most mythical creatures in the world of PostgreSQL. Ordinary PostgreSQL users often do […]
Why a monitoring tool is an essential tool for growing ...
When I was a DBA involved with the management of a large number of database servers, I […]
Retrieving MySQL data from within Python
Applications of all types commonly access MySQL to retrieve, add, update, or delete data. The applications might […]
Getting Out of Character
Pre-Unicode Younger programmers have grown up with ASCII and Unicode as the only ways of representing character […]
Find 40 Problems in this SQL Server Stored Procedure
I’ve been at this for a while now, and have a very particular set of rules and […]
PostgreSQL Basics: Object Ownership and Default Privileges
In the first security article, PostgreSQL Basics: Roles and Privileges, I discussed how roles (users and groups) […]
Azure Machine Learning Introduction: Part 1 Overview and prep work
The five-part series is designed to jump-start any IT professional’s journey in the fascinating world of Data […]
Firebase and Supabase: Key differences you need to know
The tools classified as “Realtime Backend / API“, or tools that can rapidly process an API call […]
Using TOP clause in a SELECT statement
This article is part of Greg Larsen’s continuing series on Learning T-SQL. To see all 9 items […]
PostgreSQL Constraints: Learning PostgreSQL with Grant
PostgreSQL supports constraints much like any other database management system. When you need to ensure certain behaviors […]