Transcript COBOL Unit 2 - Houston Community College System

UNIT 2
Stephen S. Linkin
Houston Community College System
Graphics
Courtesy of IBM. And
Course Technologies
(Shelly and Cashman)
Copywrite Houston Community College
System 2007
9/16/2007
1

File Maintenance
◦ Master File
◦ Transaction File
◦ New Master File


File Matching
Key Field
MASTER
FILE
NEW
MASTER
FILE
MAINTENANCE
PROGRAM
TRANSACTION
FILE
Copywrite Houston Community
College System 2007
9/16/2007
2

The Report
◦ The Information
◦ Error Messages
Copywrite Houston Community
College System 2007
9/16/2007
3
Copywrite Houston Community
College System 2007
9/16/2007
4
Copywrite Houston Community
College System 2007
9/16/2007
5
Copywrite Houston Community
College System 2007
9/16/2007
6
Copywrite Houston Community
College System 2007
9/16/2007
7


SELECT
FD
Copywrite Houston Community
College System 2007
9/16/2007
8

Transaction File Sorting and Validation
Copywrite Houston Community
College System 2007
9/16/2007
9


Transaction File Sorting and Validation
File matching
Copywrite Houston Community
College System 2007
9/16/2007
10



Transaction File Sorting and Validation
File matching
Multiple updates, adds, and deletes
Copywrite Houston Community
College System 2007
9/16/2007
11



Transaction File Sorting and Validation
File matching
Multiple updates, adds, and deletes
Copywrite Houston Community
College System 2007
9/16/2007
12




Transaction File Sorting and Validation
File matching
Multiple updates, adds, and deletes
Updating in place
Copywrite Houston Community
College System 2007
9/16/2007
13