Direct organization, COBOL Programming

Assignment Help:

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 organization, the data records are stored or "accessed" by using a scheme of converting the record into the disk address to which the record is placed. Therefore, no index table as in the case of an indexed file is essential.

 

 

 


Related Discussions:- Direct organization

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

Input and output procedure in statement, INPUT AND OUTPUT PROCEDURE IN SORT...

INPUT AND OUTPUT PROCEDURE IN SORT STATEMENT: The common format of the SORT statement can write as shown below: The format of the RELEASE statement is as shown be

Nested if statement, NESTED IF STATEMENT:   The then and else stateme...

NESTED IF STATEMENT:   The then and else statement of an IF statement can hold other IF statements. The involved IF statements in their turn may also hold other IF statements

Compute verb, COMPUTE VERB: The COMPUTE verb is very powerful. All the...

COMPUTE VERB: The COMPUTE verb is very powerful. All the evaluations performed by the other 4 verbs can also be completed easily by using the COMPUTE verb. Its normal format i

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

Example of constructing an arithmetic expression, Example of constructing a...

Example of constructing an arithmetic expression: An arithmetic expression may be proceeded by a + or - sign. These operations are known as unary + or unary - operators. Il

Comparison of nonnumeric operands - relational condition, Comparison of Non...

Comparison of Nonnumeric Operands: A nonnumeric operand can be compared to the other nonnumeric operand according to the rules as shown below: (i) Fields of Equal Sizes:

Valid and invalid word - cobol words, Valid and Invalid Word - Cobol words:...

Valid and Invalid Word - Cobol words: Valid Word             Invalid Word & Reason emp-sal                  -pay   ( it starts with a hyphen)  TOTAL MARK (blank space em

Illustration of renames clause, Illustration of Renames clause: In the...

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

Perform with varying option, PERFORM WITH VARYING OPTION: The format i...

PERFORM WITH VARYING OPTION: The format is as shown below:

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