October 2002
Beginner
864 pages
18h 41m
English
Content preview from Sams Teach Yourself SQL in 21 Days, Fourth 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,
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Creating Report and Group Summaries
What would a report be without summaries and computations? Let's just say that you would have one frustrated programmer. Certain commands in SQL*Plus allow you to break your report into one or more types of groups and perform summaries or computations on each group. BREAK is a little different from SQL's standard group functions, such as COUNT() and SUM(). These functions are used with report and group summaries to provide a more complete report.
BREAK ON
The BREAK ON command breaks returned rows of data from a SQL statement into one or more groups. If you BREAK ON a customer's name, by default, the customer's name will be printed only the first time it is returned, and then left blank with each row of data ...
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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.
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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.