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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 three fields, viz., the account number of a person, name of that and the amount that he has deposited. There are 400 such elements in the table and we want to find out whether a specific name is present in the table or not. The preferred name is given in the field is termed as NAME and if this name appears in an element of the table, we would like to show the name as well as the corresponding account number and amount. The DATA DIVISION entries for this trouble are as shown below:
The PROCEDURE DIVISION statements below can be a solution to the above problem.
In the above SEARCH statement, there are two sections- the AT END section and the WHEN section. If the condition NAME= NAME-OF-THE-PERSON (A1) is satisfied for some value the index name A1, the statement DISPLAY ACCOUNT-NUMBER (A1), NAM AMOUNT (A1) is executed. The AT END section is executed only when the whole table searched and the condition is not satisfied for any value of A1. The increment of A1 is take care by the SEARCH verb.
IF STATEMENT: The easiest form of the IF statement is IF condition-1 statement-1 where the condition-1 may be any one from the shown below. When the condition-1
Example of compound condition: In common, a compound condition has the form which is as shown below: Where condition-1 & condition-2 can be any one of the below:
Name the divisions in a COBOL program are given below DENTIFICATION DIVISION DATA DIVISION ENVIRONMENT DIVISION PROCEDURE DIVISION.
CLOSE STATEMENT: When the processing of a file is completed, then the file may be closed. This is completed with the help of the CLOSE-verb. The form of the CLOSE statement is
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:
Rules of read statements: The next record is identified according to the rules as shown below: (i) Whenever the READ NEXT statement is the initial statement to be executed
PROGRAM FOR INVENTORY We have to write a program to update the inventory file. Consider 2 files,viz, invfile an tranfile. Invfile has 3 fields pno,name,qty. Tranfile has 3 fil
Evaluate is like a case statement & Evaluate stamenet can be used to replace nested Ifs. The difference b/w EVALUATE and case is that there is no 'break' is required for EVALUATE
FILE-CONTROL ENTRIES FOR THE SEQUENTIAL FILES: The characteristics of each and every files handled in a program are specified in the ENVIRONMENT DIVISION and DATA DIVISION.
ROUNDED OPTION: Let us consider the DATA DIVISION entries which are as shown below: Now, subsequent to the execution of the statement ADD A B GIVING C, the C will hold
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