From the course: COBOL Essential Training
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File error checking - COBOL Tutorial
From the course: COBOL Essential Training
File error checking
- [Instructor] Now that we've seen how to open an input file and write an output file, I wanted to show you also how you can open a file for input output. There are times where you might want to be able to actually update the existing records in a file. In this example, I'm going to take the employee file. And recently this company was taken over by another company and all the employees have a new start date of July 1st, 2020. So all the information stays the same, their employee ID, obviously their name, what department they're in and the gender are all the same, including their salary, but we do want to change the start date. So let's take a look at how we might do that. We still have in our environment division on line seven, we still have select employee file and assign it to empfile.dat. And I'm using the same file that I used for the other exercise. Although I did actually create a folder, 0403 in the chapter four…
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