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Format for COBOL Programs:
The COBOL is a high-level language. Therefore, a COBOL program can be executed on a computer for which a COBOL compiler exists. The compiler translates the COBOL source program into the machine language object program. The object program is really executed.
The COBOL programs are written in the coding sheets. There are 80 columns in a line of a coding sheet. The page number is coded in the columns 1-3 and the line numbers are coded in columns 4-6. The page and line numbers mutually termed as the sequence number. Based on the type, the entries are coded both from the column 8 or column 12 and in both cases it can be continued up to column 72. The Columns 73-80 can be used to write some identification. The compiler ignores anything which is given in columns 73-80 except when a printed copy of the program is given by the compiler in that case the entries in columns 73-80 are also listed. The use of sequence number is optional and can be omitted. Though, when sequence numbers are given they must appear in the ascending order.
Column Field
1-3 Page Number
4-6 Line Number (1-6 Sequence Number)
7 Continuation / Comment
8-11 A - Margin / Area A
12-72 B- Margin /Area B
73-80 Identification
REWRITE STATEMENT: The REWRITE statement has the format for a relative file as shown below, REWRITE record-name [ FORM identifier ]
SEQUENTIAL FILES: The purpose of the proposed section is to introduce the concepts such as File characteristics, File Description for Fixed-Length Records, File-Control
Example of Move corresponding: Consider the DATA DIVISION entries shown below. Suppose it is needed that the data stored in the 4 fields of the PAY_REC should be
Illustration of Multiply verb: (a) MULTIPLY A BY B. In this situation the value of A & B will be multiplied and the product will be stored in B. The decimal point locatio
PROGRAM FOR RENAMES CLAUSE: identification division. program- id. environment division. data division. working-storage section. 01 emp. 02 empdet.
SPECIAL-NAMES: This paragraph is used to associate some hardware names to the user-specified mnemonic names. This paragraph is elective in all compilers. The format of this pa
PROGRAM FOR PERFORM - VARYING: We have to write a program to elaborate PERFORM ...VARYING Identification division. Program- id. PerfVary. Environment division. Dat
Environment Division: The Environment Division is the second division in the COBOL source program. It is mainly machine-dependent . The computer and all the peripheral dev
we have input file ,record layout is EMP ID (6 char) , EMP NAME (20 char), Designation (3 char),Salary (5 digit) Base Branch (10char) Grade (3 Alphanumeric). This is the input file
Identification Division: The Identification Division is the first division of each and every COBOL source program. The paragraph PROGRAM-ID is necessary in most of the mac
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