Example of read statement, COBOL Programming

Example of read statement:

Illustration:

READ OLD-MASTER AT END MOVE ZERO TO END-OF-RECORDS.

As a result of this statement, generally the next record from the OLD-MASTER file will be read. If there is no more record in the OLD-MASTER, the value zero will be moved to the field named END-OF-RECORDS.

Illustration:

READ TRANSACTION RECORD AT END GO TO PARA-END.

This illustration is similar to the former illustration. The next record from the TRANSACTION file will be read if it is available. If the file does not hold any extra records, the control will be transferred to the paragraph named PARA-END.

Illustration:  

READ KARD-FILE INTO IN-REC AT END

                                                 GO TO JOB-END.

This statement not only reads the next record into the record region of the KARD-FILE but also moves the record into the region name the IN-REC.  When there is no more record in the KARD-FILE, then the control is transferred to the paragraph named JOB-END.  If the record region of the KARD-FILE has been named KARD-REC, the above statement is alike to

READ KARD-FILE AT END GO TO JOB-END.

MOVE KARD-REC TO IN-REC.

It may be noted that if the record has been effectively read, it is now available in the

KARD-REC as well as IN-REC.

Posted Date: 10/16/2012 5:36:53 AM | Location : United States







Related Discussions:- Example of read statement, Assignment Help, Ask Question on Example of read statement, Get Answer, Expert's Help, Example of read statement Discussions

Write discussion on Example of read statement
Your posts are moderated
Related Questions
Direct Organization: Besides the relative or indexed organization, also a direct access file can be designed to have what is termed as direct organization.  In this organizati

Buffers: The Modern computers are able of handling I-O operations independent of the CPU by means of the hardware termed as data channel. For illustration, if two buffers a

SEQUENTIAL FILES WITH THE VARIABLE-LENGTH RECORDS: The Magnetic - tape or disk files can hold variable-length records. In this situation the file can have records with various

ADD and SUBTRACT CORRESPONDING: The CORRESPONDING option can also used with the ADD and SUBTRACT verbs. The following are some of the formats of these verbs with the CORRESPON

PROGRAM FOR MOVE CORRESPONDING: We have to write a simple program to demonstrate Move Corresponding. identification division.   program- id.   environment division.

RULES FOR SEARCH VERB: The rules apply for the SEARCH verb is as shown below: (1) The SEARCH verb can be applied only to a table that has the OCCURS clause and INDEXED phra

Example of Level numbers - cobol programming: To explain the hierarchical structure introduced above, the concept of the level number is employed in COBOL. The most broad

FILE STATUS clause: This clause has been involved in the above syntax for completeness. The ORGANIZATION, REVERSE, ACCESS and STATUS clause can be specified in any order.

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

Major difference between file and array how does record read from array and file why we are not preparing array for real time