December 2001
Intermediate to advanced
800 pages
17h 55m
English
Content preview from Guru's Guide to SQL Server™ Stored Procedures, XML, and HTML, TheBecome 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,
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Creating Your Own System Functions
You'll recall the discussion in Chapter 9 regarding creating our own system views—views that can be queried from any database and run within the context of that database. You can do something similar with system functions. You can create functions that reside in master, but that can be queried from any database without a database name prefix.
Here's how it works: SQL Server creates a number of system UDFs during installation (e.g., fn_varbintohexstr(), fn_chariswhitespace(), and so on). Some of these are owned by the system_function_schema, and some aren't. Those that are owned by system_function_schema can be accessed from any database using a one-part name. You can find out which ones these are by running ...
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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.
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.
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.
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.