November 1998
Beginner
496 pages
14h 6m
English
Content preview from Sams Teach Yourself COBOL in 24 Hours
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Hour 3Different Data Types
Before you can write meaningful programs, you must be able to manipulate data. In this hour, you learn about many different types of data and how to declare them in a COBOL program. This hour covers the following topics:
• The Picture clause
• Level numbers in COBOL
• Numeric and alphanumeric fields
• Defining initial values for data items
• Editing fields for an attractive presentation
One of the strengths of COBOL is its explicit definition of various types of data. In COBOL (as well as other programming languages), data areas are referred to as fields. A field is a unique and specific piece of data, for example, an address or telephone number. In programming, when you define an area to contain this data, the area ...
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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.