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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.
Example of Move corresponding: Consider the DATA DIVISION entries shown below. Suppose it is needed that the data stored in the 4 fields of the PAY_REC should be
REWRITE STATEMENT: As in the situation of a relative file, the REWRITE statement needs that the file should be opened in the I-O mode, and if the SEQENTIAL access mode is spec
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
PROGRAM TO DEMONSTRATE SORT VERB: The file for which a record having 2 fields, viz., Account Number and Name is already available. Sort the file based on the ascending order o
DELETE STATEMENT: The format of the delete statement is as shown below: DELETE file-name RECORD [ ; INVALID KEY imperative-statement ] Whenever the ACCESS MOD
single program how may when statement has used
File Description for the Relative and Indexed Files: The FD entry for a relative or an indexed file is similar to that of a sequential file. Some compilers do not permit varia
PROGRAM FOR INDEXED SEQUENTIAL FILE CREATION (RANDOM MODE): We have to write a program to create an Indexed Sequential File in random mode for Student particulars. Suppose jus
bal majduri ik kanuni apradh hai is de bavjud bache ,ghra,hotla,road, kam karn lai majbur han bacheya te mapeya nu parhai val prerit karn lai ik bashan teyar kro
UPDATING OF THE RELATIVE AND INDEXED FILES: The Sequential files are updated by creating a new master file from an existing old master file and a transaction file. Such an Upda
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