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Rules for Simple sort verb:
The work file is to be defined by a sort elaboration entry (SD entry).The format of SD entry is as shown below.
The rules below should be taken into considerations while specifying this sort verb
(i) The input, output and the work file are open by the sort statement before the starting begins and are closed by the sort statement itself after the sorting is over.
(ii) There can be any number of the SORT statement in a program.
(iii) The sorting can be completed on any number of keys.
(iv) All the keys on which the sorting is completed should appear with their elaboration in the record explanation of file name1.
(v) The Keys in sort statement do not need any qualification.
(vi) When two or more records in the input file have similar keys.
(vii) The SELECT clauses for the work file file- name-1 is SELECT file-name-1 ASSIGN TO hardware-name.
FD Entry for variable-length Records: The RECORDS CONTAINS and BLOCK CONTAINS clause are quite dissimilar in the case of files with variable- length records. The syntax of the
Comparison of Numeric Operands: We are well-known with the kind of the relational condition where both the operands are numeric. The comparison in this situation is algebraic
Figurative Constants: The Figurative constants have several fixed names and the compiler recognizes these names and it sets up the equivalent values in the object program.
Object-Computer - Configuration section: The computer name specifies a specific computer on which the object program is to be executed. The MEMORY SIZE is used to show the
RELATIVE FILES: The Files that are stored on a direct access storage medium like magnetic disk are frequently known as direct access files. The COBOL supports three different
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 DESCRIPTION- FIXED-LENGTH RECORDS: The normal characteristics of a file are explained in the file description (FD) entry of the DATA DIVISION.
IF STATEMENT: The easiest form of the IF statement is IF condition-1 statement-1 where the condition-1 may be any one from the shown below. When the condition-1
OPEN statement: We know that the processing of a file should start with the execution of an OPEN statement. The file can be opened in any one of the 4 open modes - INPUT, OUTP
OCCURS - INDEXED BY PROGRAM: identification division. program- id. searching. environment division. data division. working-storage section. 01 table1. 0
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