April 2002
Intermediate to advanced
336 pages
9h 58m
English
Content preview from Mastering Oracle SQLBecome 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.
A Brief History of SQL
In the early 1970s, an IBM research fellow named Dr. E. F. Codd endeavored to apply the rigors of mathematics to the then-untamed world of data storage and retrieval. Codd’s work led to the definition of the relational data model and a language called DSL/Alpha for manipulating data in a relational database. IBM liked what they saw, so they commissioned a project called System/R to build a prototype based on Codd’s work. Among other things, the System/R team developed a simplified version of DSL called SQUARE, which was later renamed SEQUEL, and finally renamed SQL.
The work done on System/R eventually led to the release of various IBM products based on the relational model. Other companies, such as Oracle, rallied around the relational flag as well. By the mid 1980’s, SQL had gathered sufficient momentum in the marketplace to warrant oversight by the American National Standards Institute (ANSI). ANSI released its first SQL standard in 1986, followed by updates in 1989, 1992, and 1999.
Thirty years after the System/R team began prototyping a relational database, SQL is still going strong. While there have been numerous attempts to dethrone relational databases in the marketplace, well-designed relational databases coupled with well-written SQL statements continue to succeed in handling large, complex data sets where other methods fail.
Oracle’s SQL Implementation
Given that Oracle was an early adopter of the relational model and SQL, one might think that ...
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.