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Introduction to COBOL:
In the year 1959, a new language named the COBOL (COmmon Business Oriented Language) was introduced remembering the business purpose applications.
The board of directorate that is known as CODASYL (Conference on the DATA System Language) COBOL programming language committee established a COBOL maintenance committee to keep COBOL in step during times. The first COBOL compiler became exist in early 1962. The later version with some new additions was published in the year 1965. In August 1968 a standard version of the language was approved by the American National
Standard Institute (ANSI). This standard version was again modified in 1974 and is termed as ANSI-74 COBOL or COBOL -74. The revision process has been continuous and in the year 1985 a revised standard was introduced. This standard was termed as COBOL-85.
PROGRAM FOR MOVE CORRESPONDING: We have to write a simple program to demonstrate Move Corresponding. identification division. program- id. environment division.
PROGRAM TO DEMONSTRATE MERGE VERB: The two files for which a record having 2 fields viz. Account Number and Name are already available. Now Merge these two files and create a
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:
RESERVE clause: This clause indicates the number of buffers to be used for the file. Integer-1 specifies this number. ORGANIZATION/ACCESS clause: These two clause
STATEMENTS FOR SEQUENTIAL FILES: A basic operation on a file includes the reading and writing of its records. Whenever the file is sequential, there are three verbs for the
Common form of the READ statements: Format 1 is the common form of the READ statements. Format 2 is used when the access mode is either random or dynamic. For illustration,
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 the
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.
Illustration of simple sort verb: Illustration: Suppose that we have a card file with the following records description in the data division. The names of the work fil
Example of compound condition: In common, a compound condition has the form which is as shown below: Where condition-1 & condition-2 can be any one of the below:
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