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MOVE CORRESPONDING:
It is frequently required to move some of the data items of one group to some other data items in the other group. If the names of the equivalent data items of the two groups are different, then for each of the data item, a separate MOVE verb must be used. Though, if the equivalent data items of both the records have identical names, then rather than of using separate MOVE statement, just one MOVE statement with CORRESPONDING option can be used. The illustration below describes the use of the MOVE verb with the CORRESPONDING option.
OPEN STATEMENT: Whenever a READ or a WRITE operation is executed on a file, then it should be open. The opening of a file may be completed with the help of the OPEN verb. With
CONDITIONS-NAME CONDITION: The condition name is an entity which itself is a condition and these can have either a true or false value. Though, a condition name cannot be d
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
PROCEDURE DIVISION statements for the relative files: The statements OPEN, CLOSE, READ, WRITE and REWRITE that are available for sequential files are also available for the re
Example of File-control: The assign clause assigns a specific physical peripheral device name to a file. The physical peripheral device are machine-dependent. We use the devic
77 level used for- It is Elementary level item. it Cannot be subdivisions of other items or cannot be qualified, or they can be subdivided themselves.
Group Item as Operand in the Relational Condition: Whenever an operand of a relational condition is the group item, the item is then considered to be an alphanumeric field. Th
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:
Currency Sign - edit characters for numeric data: $ (Currency Sign): The single currency sign can appear at the leftmost place of a picture. In that situation the $ cha
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:
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