September 2006
Beginner
1056 pages
17h 57m
English
book
Introduction to SQL: Mastering the Relational Database Language, Fourth Edition/20th Anniversary Edition
by Rick F. van der Lans
Content preview from Introduction to SQL: Mastering the Relational Database Language, Fourth Edition/20th Anniversary EditionBecome 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,
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.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.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.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.
Appendix B. Scalar Functions
SQL supports a large number of scalar functions. In this appendix, we present the following for the functions supported by many SQL products: the name, a description, the data type of the result of the function, and a few examples. The functions are sorted by name.
Some functions have more than one name. To make the search easier, we have included them all, but we refer to the functions with the same name.
ABS(par1)
Description: This function returns the absolute value of a numeric expression.
Data type: Numeric
ABS(-25) ⇨ 25 ABS(-25.89) ⇨ 25.89
ACOS(par1)
Description: This function returns, in radians, the angle size for any given arc cosine value. The value of the parameter must lie between -1 and 1 inclusive.
Data type: ...
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.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.