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Label Records / Disk Directory:
The most important information stored in the header label is what is termed as the file title. In the situation of magnetic-disk files the labels normally do not exist (there are lots of exceptions). As, more than one file is stored on a disk pack, the Input-Output control system also maintains a disk directory for all the files.
Illustration of if- else statement: IF OK-BALANCE NEXT SENTENCE ELSE MOVE 2 BALANCE-CODE In this illustration, the OK-BALANCE is a condition name. No action is specific if
Minus sign - edit characters for numeric data: The minus sign can appear either at the leftmost or rightmost location of the picture. If an item is negative, a minus sign will
Example of Write statement: Illustration: (i) WRITE TRANS-RECORD AFTER ADVANCING 3 LINES. This WRITE statement specified that the TRANS-RECORD is a record name of a fi
Comparison of the Numeric Operand with Nonnumeric Operand: The numeric operand can be compared to the nonnumeric operand subject to the restrictions which are as follows.
Introduction to MOVE Verb: The aim of this section is to introduce the learner how to move data from one place to the other place in the memory. This is completed with the help
PROGRAM FOR SCREEN SECTION: identification division. program- id. environment division. data division. working-storage section. 01 a pic 9(2) value
PROGRAM FOR SCREEN SECTION WITH FILES: identification division. program- id. environment division. input-output section. file-control. select
Major difference between file and array how does record read from array and file why we are not preparing array for real time
PROGRAM FOR COMPUTE VERB: We have to write an easy program to elaborate the COMPUTE verb. Identification division. Program- id. compverb. Environment division. Da
PROGRAM FOR INVENTORY We have to write a program to update the inventory file. Consider 2 files,viz, invfile an tranfile. Invfile has 3 fields pno,name,qty. Tranfile has 3 fil
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