In SQL Server, you can use the SET SHOWPLAN_ALL statement to return detailed information about how a T-SQL statement is executed, as well as estimates of the resource requirements for the statements.
SQL Server SHOWPLAN_TEXT
In SQL Server, you can use the SET SHOWPLAN_TEXT statement to return detailed information about how a T-SQL statement is executed.
Database Mail Tutorials
I’ve written quite a number of tutorials for using Database Mail, and I’ve created this article to list them all in one place.
I first included these links at the bottom of How to Send Emails from SQL Server (T-SQL), but I thought it might be helpful to move them to their own article as a quick-reference.
Continue readingWhat Do I Need to Run SQL?
I get it. You’re trying to learn SQL, but they won’t even tell you the most fundamental part – what you need to run SQL!
You’ve got the SQL code… but where do you actually run it? What software program do you need before you can run your SQL query against a database?
If that’s you, all is about to be revealed!
Continue readingSQL Server CASE Expression
In SQL Server, the T-SQL CASE expression is a scalar expression that returns a value based on conditional logic. It evaluates a list of conditions and returns a value, based on the outcome of those conditions..
In some ways, the SQL Server CASE expression is similar to IF...ELSE. However, CASE allows you to check for multiple conditions, whereas IF...ELSE doesn’t.
How to Select Nested JSON in SQL Server with OPENJSON
If you’re using OPENJSON(), but you’re trying to remember how to select an inner fragment from the JSON document, read on.
How to Write an ORDER BY Clause with Exceptions using SQL
In SQL, the ORDER BY clause is commonly used to order the results of a query. It allows you to select one or more columns to order the results, and in most cases, it’s probably all you need.
But what if you need to make an exception?
What if you want the results to be ordered alphabetically, except for one row? Or several rows?
Or perhaps you simply want to put any NULL values to the end, while ordering the non-NULL results.
Either way, there’s a neat trick you can use that will enable you to do this. And the good part is, it’s simple.
You can cater for all of the above scenarios by adding a CASE expression to your ORDER BY clause.
Install PostgreSQL on Ubuntu 20.04
Did you know that PostgreSQL is available in all Ubuntu versions by default?
Yes, that means that your Ubuntu 20.04 installation probably already has a PostgreSQL package sitting there waiting for you to install it.
And you can install it with one command, which I’ll show you below.
But what if you prefer to run the latest version of Postgres instead? Well, I’ll also show you how to install that. Installing the latest version is almost as easy as installing your local package.
Continue readingInstall PostgreSQL on Ubuntu 18.04
The following steps demonstrate how to install PostgresSQL on Ubuntu 18.04.
There are a couple of ways to go about installing Postgres on Ubuntu.
But before we start jumping in and installing it, did you know that by default, PostgreSQL is already available in Ubuntu 18.04?
So one option is to go right ahead and use the version that’s already included with Ubuntu.
But unless you have reason not to, you will probably want to run the latest version of PostgreSQL, in which case you’ll want to download and install the latest version.
This tutorial covers both options.
Continue readingHow to Install Azure Data Studio on Ubuntu 20.04
Azure Data Studio is a neat little graphical tool for managing databases.
It’s available on Windows, MacOS, and Linux. On Linux it’s available on Red Hat (RHEL), SUSE Linux Enterprise Server, and Ubuntu.
This tutorial shows you how to install Azure Data Studio on Ubuntu 20.04 via the GUI. Screenshots included.
I’ve also included the commands for installation via the command-line in case you prefer that method.
Continue reading