Now that you’ve learned the various components of the Snowflake Scripting language, it’s time to learn how to build stored procedures, which are compiled programs written using Snowflake Scripting and residing in Snowflake.
Why Use Stored Procedures?
There are a number of reasons you may want to use Snowflake Scripting to build stored procedures, such as:
Scripts that are used repeatedly can be stored in the database for ease of use and sharing with others.
Stored procedures allow for one or more parameter values to be passed in, enhancing the flexibility of your scripts.
Stored procedure names can be overloaded, meaning that multiple stored procedures may have the same name as long as the parameter types differ.
Stored procedures facilitate code reuse and hide complex logic from end users.
These are just a few of the advantages of stored procedures, and I’m sure you’ll discover more as you progress.
Turning a Script into a Stored Procedure
Let’s start with the final script from the previous chapter and walk through the steps needed to turn it into a stored procedure. Figure 16-1 shows the script.
Figure 16-1. Script to return average balance
This script divides the number of days in a month into the total balance and returns the average daily balance. Turning it into a stored procedure requires the following changes:
Adding the create ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month, and much more.
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
