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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
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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
PERFORM WITH VARYING OPTION: The format is as shown below:
Illustration of simple sort verb: Illustration: Suppose that we have a card file with the following records description in the data division. The names of the work fil
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
Edit Characters for Numeric Data: The characters below can be used in the PICTURE clause to indicate the editing. Z * $ - + CR DB . , B O /
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