June 2010
Intermediate to advanced
328 pages
7h 51m
English
Content preview from SQL Antipatterns
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Chapter 9Metadata Tribbles
I want these things off the ship. I don’t care if it takes every last man we’ve got, I want them off the ship.
James T. Kirk
My wife worked for years as a programmer in Oracle PL/SQL and Java. She described a case that showed how a database design that was intended to simplify work instead created more work.
A table Customers used by the Sales division at her company kept data such as customers’ contact information, their business type, and how much revenue had been received from that customer:
| Metadata-Tribbles/intro/create-table.sql | |
| | CREATE TABLE Customers ( |
| | customer_id NUMBER(9) PRIMARY KEY, |
| | contact_info VARCHAR(255), |
| | business_type VARCHAR(20), |
| | revenue NUMBER(9,2) |
| | ); |
But the Sales division ...
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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.