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NONSTANDARD CLAUSES:
The various clauses explained above are as per the ANSI standard. Also, most compilers provide for additional nonstandard clauses to meet the specific necessities of the corresponding computer.
Illustration of file-description entries:
FD FILE - A
RECORD CONTAINS 130 CHARACTERS
BLOCK CONTAINS 20 RECORDS
DATA RECORD IS FIRST-RECORD
LABEL RECORDS ARE STANDARD
VALUE OF ID IS "MY-LIFE".
01 FIRST-RECORD PIC X(130).
READ STATEMENT: The aim of this verb is to make available the next logical record from the input file. It is important to note the meaning of the "next" logical record in the
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
DIVIDE VERB: The aim of the DIVIDE verb is to divide one number by the other and to store the result. There are few forms of this verb. One of its forms is as shown below:
Write a COBOL IF sentence to use the values of numeric variables EXAM and COURSEWORK , both assumed to be with format PIC 999 and in the range 0 to 100 and to move the value:
PROGRAM FOR INDEXED SEQUENTIAL FILE CREATION: We have to write a program to create an Indexed Sequential File in a dynamic mode for Student particulars. Suppose just 3 fields:
IF STATEMENT: The easiest form of the IF statement is IF condition-1 statement-1 where the condition-1 may be any one from the shown below. When the condition-1
Data Names and Identifiers: The Data name provides reference to the storage space in the memory where the real value is stored. This value takes part in the operation whene
PROGRAM FOR ADD VERB: We have to write a simple program to elaborate the ADD verb. You can also use edit characters in the program. Identification division. Program- id.
PERFORM WITH TIMES OPTION: The format of a PERFORM TIMES statement is as shown below: Illustration: A) Perform the para-2 5 times. In this situation the specifie
INDEXED TABLES: The OCCURS clause that is used to define tables can optionally have an INDEXED phrase. This phrase involves the names of data items which are to be used as sub
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