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File- Section &Working-Storage Section:
a) FILE SECTION:
The FILE SECTION includes the explanation of all data items that must be read from or written onto some external file.
b) WORKING-STORAGE SECTION:
The data items that are developed internally as intermediate result as well as the constants are explained in this section of the DATA DIVISION.
The format of the DATA DIVISION is as shown below:
DATA DIVISION.
[FILE SECTION.
File section entries.
......
......]
[WORKING-STORAGE SECTION.
WORKING-STORAGE ENTRIES.
All the section names as well as the division name should be coded as the margin A entries,
Each section of the DATA DIVISION is optional that means that a section may be omitted if there is no data which may be explained in a specific section. It is important to note that the sections to be included should appear in the order as shown above.
CONDITIONS-NAME CONDITION: The condition name is an entity which itself is a condition and these can have either a true or false value. Though, a condition name cannot be d
CLOSE statement: The simplified syntax of the CLOSE statement is as shown below: CLOSE file-name-1 [WITH LOCK ] [ , file-
DELETE STATEMENT : The file should be opened in the I-O mode. If the access is SEQUENTIAL, the INVALID KEY phrase must be specified. Rather than, the last input-output state
what does it used
File volatility: File volatility associates to the number of times the updating of records are needed during some time period. File interrogation: Some files hold re
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
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
DIVIDE VERB: The aim of the DIVIDE verb is to divide one number by the other and to store the result. There are few forms of this verb. One of its forms is as shown below:
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
PICTURE specification: The size of a group item is equivalent to the total of the sizes of all the subordinate elementary items. The group item class is alphanumeric. The i
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