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FD Entry for variable-length Records:
The RECORDS CONTAINS and BLOCK CONTAINS clause are quite dissimilar in the case of files with variable- length records. The syntax of these two clauses is as shown below:
WRITE STATEMENT: The records are written to be logical place as determined from the value of the record key. The INVALID KEY condition occurs in the cases shown below: (i)
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
ADD and SUBTRACT CORRESPONDING: The CORRESPONDING option can also used with the ADD and SUBTRACT verbs. The following are some of the formats of these verbs with the CORRESPON
ADD VERB: The ADD Verb can be used to find the sum of two or more numbers and to store the sum. The ADD verb takes any one of the two forms 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:
Comparison of Nonnumeric Operands: A nonnumeric operand can be compared to the other nonnumeric operand according to the rules as shown below: (i) Fields of Equal Sizes:
Major difference between file and array how does record read from array and file why we are not preparing array for real time
Data Division: The Data Division is a part of the COBOL program where every data item processed by the program is described. It is very important to note that unless a data
ARITHMETIC VERBS: Most of the problems need some computations to be performed on the input or intermediate data that are numeric in nature. The Arithmetic verbs are used to pe
Illustration of perform statement: PERFORM CALCUALTE-TAX. In this illustration, the CALCULATE-TAX is either a section name or paragraph name. Assume that it is a section
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