Read statement, COBOL Programming

Assignment Help:

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 

 

 


Related Discussions:- Read statement

Example of on size error option, ON SIZE ERROR OPTION: Whenever a size...

ON SIZE ERROR OPTION: Whenever a size error occurs, the contents of the result field after the operation is unpredictable.  Though, the processing is not-terminated and the co

File characteristics, FILE CHARACTERISTICS: The task of file handling ...

FILE CHARACTERISTICS: The task of file handling is the responsibility of the system software termed as IOCS (Input-Output control system). Record Size: We know that th

Sign - picture clause, Sign - Picture clause: The numeric data item ca...

Sign - Picture clause: The numeric data item can be signed or unsigned. If a numeric data is regarded as unsigned then during the execution these unsigned data items are treat

Program of occurs clause, OCCURS CLAUSE - PROGRAM: We have to write a ...

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.

Occurs, what does it used

what does it used

Program for if condition, PROGRAM FOR IF :   We have to write a progr...

PROGRAM FOR IF :   We have to write a program to check whether the given number is ODD or EVEN. Identification division. Program- id. Ifst. Environment division.

Column and field in cobol program, Column and Field in COBOL program: ...

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

File-control - input-output section, FILE-CONTROL: The FILE-CONTROL pa...

FILE-CONTROL: The FILE-CONTROL paragraph names each and every file and identifies the first medium through file control entries. The basic format of a file control entry is gi

Start statement - indexed files, START STATEMENT: The START statement ...

START STATEMENT: The START statement places the files to the initial logical record whose record key satisfies the condition specified by the KEY phrase. The access mode shoul

Level numbers - cobol programming, LEVEL NUMBERS: The COBOL makes use ...

LEVEL NUMBERS: The COBOL makes use of the level number concept to explain the hierarchical data structure. A level number is a 2 digit number. The permitted level numbers a

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd