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Picture Clause:
The picture clause explains the general characteristics of an elementary data item.
These characteristics are elaborated below:
Class:
In COBOL the data item may be one of the 3 classes - numeric, alphabetic or alphanumeric. The numeric items consist only of digits 0 to 9. The Alphabetic items consist only of the letters A to Z (a to z) and the space (blank) character. The alphanumeric may consist of alphabets, digits as well as the special characters.
BLANK WHEN ZERO: BLANK WHEN ZERO is an editing clause that may be used along with a picture. This will set the whole data item to blanks of its value is equal to zero. Though,
There are some restrictions when these procedures are used. (i) The Procedure should not contain any SORT/MERGE statement. (ii) An explicit transfer of the control outside
Name the divisions in a COBOL program are given below DENTIFICATION DIVISION DATA DIVISION ENVIRONMENT DIVISION PROCEDURE DIVISION.
File Activity: The file activity is a measure of the proportion of records processed during an update run. Therefore we define the activity ration as shown below. Activi
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
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
PROGRAMS FOR REDEFINES CLAUSE: We have to write a simple program to explain the REDEFINES clause at 01 level. identification division. program- id. Redef. environment
Column and Field in COBOL program: In COBOL there are 2 types of entries termed as margin A and margin B entries. The Margin A entries start from the column 8, 9, 10 or 11 and
Example of Redefines clause: This illustration describes a sales record that may either contain the total amount of sale or the quantity (QTY) and UNIT-PRICE. The aim of such
PROGRAM FOR DIVIDE VERB: We have to write an easy program to elaborate DIVIDE verb. You can also use edit characters in the program. Identification division. Program-
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