Which COBOL statement is used for subtracting one numeric value from another?
- ADD
- DIVIDE
- MULTIPLY
- SUBTRACT
The SUBTRACT statement in COBOL is used to subtract one numeric value from another. It is a fundamental arithmetic operation in COBOL and supports various formats for different types of numeric data.
In a complex COBOL application, you encounter a situation where two different parts of the program need to access the same data item but interpret it differently. How can you achieve this using the REDEFINES clause?
- Create multiple 01-level records with different REDEFINES clauses
- Declare the data item with OCCURS DEPENDING ON clause
- Use 88-level condition names for each interpretation
- Utilize a nested data structure with REDEFINES clause
To have two different interpretations of the same data item in different parts of a program, you can use the REDEFINES clause within a nested data structure. This allows you to define multiple views of the same data item without conflicting interpretations.
When implementing exception handling in COBOL, the _______ statement is used to propagate an exception to higher-level routines.
- PROPAGATE
- RAISE
- SIGNAL
- THROW
The PROPAGATE statement in COBOL is used to propagate an exception to higher-level routines. It allows the handling of exceptions at different levels in the program hierarchy.
In COBOL, a record represents a ___________ data structure.
- Hierarchical
- Linear
- Relational
- Sequential
In COBOL, a record represents a Sequential data structure. Sequential records are stored one after the other, and each record contains fields that represent the data elements in a specific order.
When an exception occurs during file processing in COBOL, the associated error code can be found in the special register called _____.
- ERROR-CODE
- EXCEPTION-STATUS
- FILE-STATUS
- STATUS-CODE
In COBOL, when an exception occurs during file processing, the associated error code can be found in the special register called FILE-STATUS. Programmers can inspect this register to determine the nature of the error.
In COBOL, what is the purpose of the FUNCTION statement when using intrinsic functions?
- To call built-in intrinsic functions
- To declare variables
- To invoke user-defined functions
- To specify file operations
The FUNCTION statement in COBOL is used to call built-in intrinsic functions. It enables the use of predefined functions like NUMVAL, EDIT, and others, providing a convenient way to perform specific operations on data within a COBOL program.
The process of systematically finding and correcting errors in a COBOL program is known as _____.
- Compiling
- Debugging
- Testing
- Tracing
Debugging is the systematic process of finding and correcting errors in a COBOL program. It involves identifying and fixing issues to ensure the program functions as intended.
What is the benefit of using an index in COBOL arrays and tables?
- Enhanced data validation
- Improved access and manipulation of data
- Reduced storage requirements
- Simplified syntax
Using an index in COBOL arrays and tables provides improved access and manipulation of data. It allows for efficient retrieval of specific elements, making it easier to work with large datasets and enhancing program performance.
How can duplicate records in a COBOL file be identified?
- By comparing each record with a master file
- By performing a sequential search in the file
- By using the DUPLICATES phrase in the SELECT statement
- By utilizing the ALTERNATE KEY clause
Duplicate records in a COBOL file can be identified by using the DUPLICATES phrase in the SELECT statement. This allows the program to detect and handle records with identical key values efficiently.
What is the primary purpose of the COBOL Procedure Division?
- To declare data elements
- To define the file structure
- To handle program termination
- To specify the processing logic for the program
The COBOL Procedure Division is used to specify the processing logic for the program. It contains the statements that define the sequence of operations to be performed during program execution.