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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 machines. The other paragraphs are elective.
The structure of Identification division is shown below:
IDENTIFICATION DIVISION.
PROGRAM-ID. Entry
[AUTHOR. entry.]
[INSTALLATION. entry.]
[DATE-WRITTEN. entry.] Optional
[DATA-COMPILED. entry.]
[SECURITY. entry.]
[REMARKS. entry.]
The division heading and paragraph names must be coded as A margin entries. The entries subsequent the paragraph headings should be terminated by a period. The entry in the PROGRAM-ID paragraph includes the program name to be used to identify the object program.
The entries in the other paragraphs are generally treated as comments and the programmer is free to write whatever thing for these entries. Only significant entries must be included in these places to provide better clarity and documentation.
The entry for the AUTHOR paragraph may include the name of the programmer. The entrance of the DATE-COMPILED paragraph may hold the date of compilation. If this entry is left blank, then the compiler inserts the real date in the listing of the source program which may be printed during the compilation.
PROGRAMS FOR REDEFINES CLAUSE: We have to write a simple program to explain the REDEFINES clause at 01 level. identification division. program- id. Redef. environment
GO TO, STOP RUN: The GO TO verb is used to completely transfer the control to elsewhere in the program. Its form is as shown below: GO TO procedure-name As a result o
B (Blank Insertion) : The occurrence of a B anyplace in the picture will insert a space character in the edited data. There can be more than one B in the picture. Examples:
OCCURS CLAUSE - PROGRAM: We have to write a program to elaborate occurs clause. Get names and marks of the students and show them on the screen. identification division.
Illustration of Renames clause: In the illustration, PAT-OTHER-THAN-BASIC will become a fresh group consisting of DEARNESS-ALLOWANCE, HOUSE-RENT & MTHLY-INCENTIVE. Keep in min
MOVE CORRESPONDING: It is frequently required to move some of the data items of one group to some other data items in the other group. If the names of the equivalent data item
RULES FOR INDEXED TABLES: The rules of indexing a table with an INDEXED phrase are as shown below: (1) If indexing is completed for any one level of a table, then indexing
PROGRAM FOR DIVIDE VERB: We have to write an easy program to elaborate DIVIDE verb. You can also use edit characters in the program. Identification division. Program-
Example of Special-names: Consider the illustration: Let the SPECIAL-NAMES paragraph be as shown: SPECIAL-NAMES. CHANNEL 1 IS PAGE-TOP. The Channel is related with the t
Currency Sign - edit characters for numeric data: $ (Currency Sign): The single currency sign can appear at the leftmost place of a picture. In that situation the $ cha
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