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Common form of the READ statements:
Format 1 is the common form of the READ statements.
Format 2 is used when the access mode is either random or dynamic. For illustration, assume REL-KEY is the names for the relative file and the relative key data item respectively. The statements below will read the 50th record from the file.
MOVE 50 TO REL-KEY.
READ REL-FILE RECORD INVALID-KEY GO TO PARA-INVALID.
Format 3 of the read statement can be used whenever the access mode is dynamic and the records are to be read successively.
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
CLASS CONDITION: The class condition establishes whether or not the value of the operand is numeric or alphabetic. The operand is numeric if it contains only the digits 0 t
ACCEPT STATEMENT: The ACCEPT statement is used to read the low-volume data from the operator's console, several other hardware device or from the operating system. The common
Can u please let me know how can i use SSA''s in IMS while fetching segments. Thanks, Rajesh
Data types available in COBOL are given below Alpha-numeric (X), numeric (9), alphabetic (A)
Transaction file : A transaction file is a file which contains new records those changes to old records which are used to update the master file. The problem of file updatio
COMPUTE VERB: The COMPUTE verb is very powerful. All the evaluations performed by the other 4 verbs can also be completed easily by using the COMPUTE verb. Its normal format i
single program how may when statement has used
Data Names and Identifiers: The Data name provides reference to the storage space in the memory where the real value is stored. This value takes part in the operation whene
Illustration of the abbreviation: A few illustration of the abbreviation are given below: Illustration: The compound condition AMOUNT GREATER THAN 499 AND AMOUNT L
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