Let’s start slow with a simple CTE query demo for easy absorption. Transcription of video: So let’s take a look at how to write a simple CTE query. So what I have is a test database here that I’ve set up called CTE demo. And in that I’ve got a couple tables one’s called royalty that has a bunch of …
Steve dives into using CTEs instead of derived tables. What the benefit of CTEs Do CTEs over derived tables benefit performance? And a quick demo explanation Transcription of video: Now let’s take a look at some more complex examples of how to use a CTE instead of a derived table. Now use a CTE instead of a derived table, it’s …
What is with, WITH? If you don’t know watch Steve’s quick 2 minute video explanation. Transcription of video: Okay, so the syntax of using common table expressions is to use the WITH keyword. all CTE start with the word WITH rather than select like you would normally have in your queries. And it can be confusing if you’re assuming that …
Steve quickly touches on which versions of SQL Server common table expressions are available on. Transcription of Video: So common table expressions have been available since SQL Server 2005. And I really wish that I’d learned about common table expressions when they first came out. I think it was around 2010 2011 that I first learned about them. And I …
In this short but to the point video Steve explains the question “what is a CTE?” Transcription of this video: CTE is kind of this concept of what we’re calling a virtual table where it’s like a sub query or like a view where it’s referencing another chunk of SQL query that’s going to be used and named. Similar to …
Common table expressions are beneficial to use when writing or managing complex queries. Being condensed or simplified, CTEs increase accessibility and digestion. Watch Steve’s video for more on CTEs…… Transcription of this video: Why would you use common table expressions? I mean, you may have been writing SQL queries for 10 or more years, and have never used a common …
Hooray! It’s CTE month. Some of you may be happy but you others may by like ugh. Common table expressions can be tough and confusing but WE’VE GOT YOU COVERED! This month we will be throwing lots of valuable CTE information and resources at you including….. Instructional videos Tips of the trade And a FREE download! Check in daily to …