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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 above statement. The foremost time the READ statement is executed, and then the first record of the file will be read into the record region explained in the FILE SECTION of the DATA DIVISION. The later time the READ statement is executed, the second record will be read in the similar region. In this way each time a READ statement is executed the successive records will be read in the similar region. Hence a time will come when there will be no more records in the file. In that situation the statements following the AT END clause will be executed. The format of the READ statement is shown below:
READ file-name RECORD [INTO identifier-1]
AT END imperative-statement
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
GIVING file-name-5. The input files to be merged through the MERGE statements which are specified in the USING phrase. These files should be sequential files and should be
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 nec
Figurative Constants: The Figurative constants have several fixed names and the compiler recognizes these names and it sets up the equivalent values in the object program.
Rules for apply for the condition name: The rules below apply for the condition name. (i) The Condition names should be explained at level 88. The level number starts in ma
Column and Field in COBOL program: In COBOL there are 2 types of entries termed as margin A and margin B entries. The Margin A entries start from the column 8, 9, 10 or 11 and
PERFORM WITH VARYING OPTION: The format is as shown below:
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
Introduction to COBOL: In the year 1959, a new language named the COBOL ( CO mmon B usiness O riented L anguage) was introduced remembering the business purpose application
CONDITION - COBOL Programming: The condition is an entity which at one point of time can have only one of the two values - true or false. As we already know that, the IF verb
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