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NEGATED SIMPLE CONDITION:
Any of the easy condition explained can be preceded by the logical operator NOT. The consequence of placing the operator NOT before an easy condition is to reverse the value of the condition. It might be seen that the operator NOT can be used in 2 ways. In easy conditions it can be used as a part of the condition. It can also be used to precede an easy condition to make it a negated simple condition. An illustration of the first use may be DEPOSIT NOT LESS THAN 500.00 whereas an illustration of the second use is Not DEPOSIT LESS THAN 500.00. Of course, in this situation, both the circumstances mean the similar thing and can be used in either form. What is the role of the operator NOT. In the previous situation NOT is the part of a relational operator and in the latter case it is a logical operator. Although, NOT should not precede a simple condition which includes NOT as a part of it.
.(Period or Decimal Point) : The period may be used to insert a decimal point and may not come into view more than once. Both the period and V cannot appear in similar picture
Edit Characters for Numeric Data: The characters below can be used in the PICTURE clause to indicate the editing. Z * $ - + CR DB . , B O /
UPDATING OF THE RELATIVE AND INDEXED FILES: The Sequential files are updated by creating a new master file from an existing old master file and a transaction file. Such an Upda
Encryption and Decryption
Structure of a COBOL Program: Every COBOL program should have the 4 divisions in the order in which they are specified below: 1. Identification division 2. Environment D
NESTED IF STATEMENT: The then and else statement of an IF statement can hold other IF statements. The involved IF statements in their turn may also hold other IF statements
REWRITE STATEMENT: As 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 SEQENTIAL access mode is spec
CLOSE statement: The simplified syntax of the CLOSE statement is as shown below: CLOSE file-name-1 [WITH LOCK ] [ , file-
ADD and SUBTRACT CORRESPONDING: The CORRESPONDING option can also used with the ADD and SUBTRACT verbs. The following are some of the formats of these verbs with the CORRESPON
Example of Perform statement: PERFORM BEGIN-CALCULATION THRU END-CALCULATION. Assume, BEGIN-CALCULATION and END-CALCULTION is paragraph names. The execution of the PERFORM
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