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WRITE statement:
The WRITE statement for tape and sequential-disk files has the syntax shown below.
WRITE record-name [ FROM identifier ]
As a result of the execution of the WRITE statement, the record is free from the record region and is written onto the file.
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
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,
RENAMES CLAUSE: At times re-grouping of an elementary data items in a record may be essential so that they can belong to the original as well as to the latest group. This is o
can we move spaces to numeric field
RULES FOR OCCURS CLAUSE: The rules apply for the OCCURS clause and the subscripts are as shown below. (1) The integer in the OCCURS clause should be a positive integer.
SEQUENTIAL FILE CREATION AND REWRITING: We have to write a program to create a student file with just two fields: sno i.e. Student Number and same i.e. Student Name. Add a few
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
Edit Characters for Numeric Data: The characters below can be used in the PICTURE clause to indicate the editing. Z * $ - + CR DB . , B O /
LEVEL NUMBERS: The COBOL makes use of the level number concept to explain the hierarchical data structure. A level number is a 2 digit number. The permitted level numbers a
READ STATEMENT: The aim of this verb is to make available the next logical record from the input file. It is important to note the meaning of the "next" logical record in the
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