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Display control verbs in Cobol
FD Entry for variable-length Records: The RECORDS CONTAINS and BLOCK CONTAINS clause are quite dissimilar in the case of files with variable- length records. The syntax of the
FILE-CONTROL paragraph for the relative files: The normal format for the SELECT clause for a relative file is as shown below. SELECT file-name ASSIGN TO implementor-nam
Comparison of the Numeric Operand with Nonnumeric Operand: The numeric operand can be compared to the nonnumeric operand subject to the restrictions which are as follows.
we have input file ,record layout is EMP ID (6 char) , EMP NAME (20 char), Designation (3 char),Salary (5 digit) Base Branch (10char) Grade (3 Alphanumeric). This is the input file
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
Rules for constructing an Arithmetic Expression: The rules for constructing an arithmetic expression are as shown below: (i) When an arithmetic expression specifies a calcu
Selection of file Organization: While designing a file, the programmer should select an appropriate association for a file. The order in which the choice is to be made is as s
Column and Field in COBOL program: In COBOL there are 2 types of entries termed as margin A and margin B entries. The Margin A entries start from the column 8, 9, 10 or 11 and
Concept of a two-dimensional table: Concept of a two-dimensional table can be easily extended to tables having three or more dimensions. The Handling of tables up to three dim
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