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SIGN CONDITION:
The sign condition establishes whether or not the algebraic value of an operand is negative, positive or zero. The operand can be either the numeric identifier or an arithmetic expression. The format of this condition is as shown below:
When an arithmetic expression is used, it should contain at least one of the identifier. The POSITIVE option establishes the value of the condition to be true only if the value of the operand is firmly positive. This means that the zero value is not considered as positive.
.(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
SEQUENTIAL FILES WITH THE VARIABLE-LENGTH RECORDS: The Magnetic - tape or disk files can hold variable-length records. In this situation the file can have records with various
Example of Sign condition: The illustration below describes the use of the sign condition. Illustration: 77 BALANCE PIC S9 (6) V99. . . I
PROGRAM TO FIND INTEREST ON BANK DEPOSITS: We have to write a program to find interest on deposits. The criteria is given below : identification division. program-
REWRITE STATEMENT: The REWRITE statement has the format for a relative file as shown below, REWRITE record-name [ FORM identifier ]
FILE STATUS clause: This clause has been involved in the above syntax for completeness. The ORGANIZATION, REVERSE, ACCESS and STATUS clause can be specified in any order.
Literals: The actual values can too appear in a program. These values are termed as literals. For illustration, the statement MOVE 0 TO TOTAL indicates that the value zero wil
PROGRAM FOR PERFORM - THRU: We have to write a program to elaborate PERFORM ...THRU statement Identification division. Program- id. Perfthru. Environment division.
SIMPLE MERGE VERB: Like sorting, the merging of files is often required in different commercial application. It is likely to merge two or more files with the help of one MERGE
B (Blank Insertion) : The occurrence of a B anyplace in the picture will insert a space character in the edited data. There can be more than one B in the picture. Examples:
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