August 2017
Intermediate to advanced
832 pages
15h
English
Content preview from OCA Oracle Database SQL Exam Guide (Exam 1Z0-071)
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PREFACE
Recently I attended a technical conference hosted by a leading big data vendor. I found myself speaking with an exhibitor about his startup company’s NoSQL product. Now folks, I love all forms of data systems; they all have their place. Key-value pairs, dynamic schemas—they all have a use. But this particular vendor boldly declared that the relational database was useless and “SQL is dead.” He described how his system could harvest text-based comments and infer sentiment across millions of records and support all sorts of clever use cases—all of which, incidentally, is doable with Oracle-driven SQL-based systems. But he was convinced that Oracle’s relational database management system (RDBMS) was irrelevant.
So I asked him, “Let’s say ...
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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.