Oracle subquery caching and subquery pushing
In this article, Jonathan Lewis discusses why you might want to stop the optimizer from unnesting some subqueries and how to control where the optimizer positions each subquery.
2022-04-11
Additional Articles
Ordering a result set in SQL Server
To guarantee the order of a result set, you must use an ORDER BY clause. In this article, Greg Larsen explains what you need to know about ORDER BY.
2022-04-08
Registration is now open for Summit 2022
Now’s the time to save your seat at the world’s largest hybrid conference for data platform professionals, taking place November 15-18! Join attendees from around the globe who are gathering in-person and online for a full week of world-class training, networking, and data-platform focused events. Register today to take advantage of discounted launch pricing, available for a limited time.
2022-04-08
COALESCE(), ISNULL() , NULLIF() and alternatives in SQL Server, Oracle and PostgreSQL
In this article we look at the SQL functions COALESCE, ISNULL, NULLIF and do a comparison between SQL Server, Oracle and PostgreSQL.
2022-04-06
Introducing Pinal Dave to new SQL Monitor features
Pinal Dave from SQL Authority has used – and been a fan of – SQL Monitor since it launched in 2008 (fun fact: it was named SQL Response back then!) There are, however, a few newer features that Pinal isn’t too familiar with, and we were delighted to introduce those to him in this short video.
2022-04-06
Why you need to go beyond dynamic data masking
Data masking is defined as replacing sensitive data with a realistic fictional equivalent. But do you know there are 2 key types of Data masking, and what each offer? Join SQLServerCentral Editor, Steve Jones, in this 30-minute webinar to find out more.
2022-04-04
Working with MySQL Views
Views in MySQL allow you to save a predefined SQL query. Robert Sheldon explains the benefits of views and how to create and query them.
2022-04-04
Exploring New SQL Prompt Features in SQL Toolbelt and SQL Toolbelt Essentials
Roseanna Whitelegg explores new SQL Prompt functionality that has been added to SQL Toolbelt and SQL Toolbelt Essentials to help teams increase their productivity, improve code quality, and make collaboration easier.
2022-04-01
SQL Server and Oracle Create Table Comparison
In this article we look at a comparison of different things you can specify when creating tables in SQL Server and in Oracle.
2022-04-01
Data Types in PostgreSQL: Learning PostgreSQL with Grant
PostgreSQL has an unusually large number of data types. Grant Fritchey reviews each data type and discusses the good and bad points of each.
2022-03-30
Blogs
DiskANN Experiment — Exploring Entry Points and Graph Neighborhoods
Introduction I was experimenting with vector search in SQL Server 2025 using approximately 3.8...
T-SQL Tuesday #203: Risk and Reward
By Steve Jones
This is timely, as I’m currently on a boat in the Adriatic taking a...
dataMinds Connect 2026 – Slides & Scripts
You can find the slides and SQL scripts for my session “Spice up your...
Forums
Communication, For Incidents and Life
Comments posted to this topic are about the item Communication, For Incidents and Life
PostgreSQL psql Meta Commands: Tables
Comments posted to this topic are about the item PostgreSQL psql Meta Commands: Tables
Building a Support Ticket Triage Report with IIF() and CHOOSE() in SQL Server
Comments posted to this topic are about the item Building a Support Ticket Triage...
Question of the Day
PostgreSQL psql Meta Commands: Tables
Which of the following psql meta commands (also called backslash or slash commands) will provide information about tables within a database?
See possible answers