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Selection of file Organization:
While designing a file, the programmer should select an appropriate association for a file. The order in which the choice is to be made is as shown below:
(i) Implementation support difficulty.
(ii) Software support required.
(iii) Efficiency of processing.
PROGRAM FOR IF : We have to write a program to check whether the given number is ODD or EVEN. Identification division. Program- id. Ifst. Environment division.
SEARCH VERB: The SEARCH verb is used to position elements in one-dimensional tables. Let us consider the following problem. Assume that each element of a table consists of thr
Example of Sign condition: The illustration below describes the use of the sign condition. Illustration: 77 BALANCE PIC S9 (6) V99. . . I
We have input file, record layout is EMP ID (6 char) , EMP NAME (20 char), Designation (3 char),Salary (5 digit) Base Branch (10char) Grade (3 Alphanumeric). This is the input f
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
PROGRAM FOR INDEXED SEQUENTIAL FILE CREATION: We have to write a program to create an Indexed Sequential File in a dynamic mode for Student particulars. Suppose just 3 fields:
CLASS CONDITION: The class condition establishes whether or not the value of the operand is numeric or alphabetic. The operand is numeric if it contains only the digits 0 t
PROGRAM FOR PERFORM - VARYING: We have to write a program to elaborate PERFORM ...VARYING Identification division. Program- id. PerfVary. Environment division. Dat
RESERVE clause: This clause indicates the number of buffers to be used for the file. Integer-1 specifies this number. ORGANIZATION/ACCESS clause: These two clause
scope of marginal costing
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