what is the development lifecycle why is it
What is the development lifecycle?Why is it useful?Describe the activities carried out at each stageDetermination of scopeRequirements specificationDesignCodingTestingMaintenance
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write statement the write statement for a relative file has the format which is as shown below
rewrite statementthe rewrite statement has the format for a relative file as shown belowrewrite record-name form identifier
delete statementthe format of the delete statement is as shown belowdelete file-name record invalid key
indexed sequential filesin the indexed sequential files which are also known as indexed files the records are stored in the sequence order generally
what is the development lifecycle why is it useful describe the activities carried out at each stage determination of
procedure division statements for the indexed filesall the statements which are available for a relative file are also available for an indexed
write statementthe records are written to be logical place as determined from the value of the record key the invalid key condition occurs in the
rewrite statementas 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
delete statementthe file should be opened in the i-o mode if the access is sequential the invalidkey phrase must be specified rather than the last
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