The ______ clause in COBOL is used to specify the action to be taken when an exception occurs.
- EXCEPTION-CONDITION
- EXCEPTION-CONTROL
- EXCEPTION-HANDLER
- ON EXCEPTION
The EXCEPTION-HANDLER clause in COBOL is used to specify the action to be taken when an exception occurs during program execution. It allows the programmer to define custom error-handling logic for specific exceptions.
In COBOL, what is a stored procedure, and how is it used in database connectivity?
- A COBOL program that directly accesses the database
- A dynamic SQL statement generated at runtime
- A precompiled set of SQL statements stored in the database
- An external subroutine that manipulates data in COBOL programs
In COBOL, a stored procedure is a precompiled set of SQL statements stored in the database. It is invoked using EXEC SQL statements in COBOL programs. Stored procedures enhance modularity, security, and performance in database connectivity.
The _____ clause in COBOL specifies the maximum number of records that can be in a relative file.
- LIMIT
- MAXIMUM
- OCCURS
- SIZE
In COBOL, the SIZE clause is used to specify the maximum number of records that can be present in a relative file. It helps in managing the size and capacity of the file for optimal performance.
In COBOL, what is the primary purpose of using VSAM and ISAM files?
- To enhance portability of COBOL programs
- To facilitate easy indexing of records
- To provide direct access to records based on key values
- To store only sequential data efficiently
The primary purpose of using VSAM (Virtual Storage Access Method) and ISAM (Indexed Sequential Access Method) files in COBOL is to provide direct access to records based on key values. This enables efficient retrieval and manipulation of specific records in a file.
The _____ clause in COBOL allows you to specify an alternative action to be taken when a file operation results in an exception.
- ALTERNATE RECORD
- EXCEPTION HANDLING
- EXCEPTION PROCEDURE
- INVALID KEY
In COBOL, the "INVALID KEY" clause is used to specify an alternative action to be taken when a file operation results in an exception. It provides a way to handle errors and take appropriate measures to ensure smooth program execution.
When using the MERGE statement, both input files must be _____ in ascending or descending order based on the merge criteria.
- INDEXED
- RANDOM
- SEQUENTIAL
- SORTED
When using the MERGE statement in COBOL, it is essential that both input files are sorted either in ascending or descending order based on the merge criteria. This ensures the effectiveness of the merging process.
In error handling, what does the "CONTINUE" statement typically signify?
- No specific action is taken, and the program continues with the next statement
- The error is logged to a file
- The program rolls back to the previous checkpoint
- The program terminates immediately
In error handling, the "CONTINUE" statement in COBOL signifies that no specific action is taken, and the program continues with the next statement in the normal flow, allowing for graceful handling of errors without disrupting the program execution.
In COBOL, how can you pass data between a calling program and a called subprogram?
- By declaring global variables that can be accessed by both the calling program and the called subprogram.
- By using the ACCEPT and DISPLAY statements.
- By using the CALL statement without any additional clauses.
- By using the LINKAGE SECTION in the called subprogram and the USING clause in the calling program.
Data can be passed between a calling program and a called subprogram in COBOL by defining a LINKAGE SECTION in the called subprogram and using the USING clause in the calling program. This ensures proper communication and sharing of data between the two program units.
You are tasked with parsing and modifying a text field in a COBOL program. Which COBOL statement can help you achieve this?
- INSPECT statement
- PERFORM VARYING statement
- STRING statement
- UNSTRING statement
The UNSTRING statement in COBOL is used for parsing and extracting portions of a text field. It allows you to break down a text field into smaller components based on specified delimiters, enabling you to modify or manipulate the text as needed.
The OPEN verb in COBOL allows you to specify the ________ mode for a file.
- Access
- Organization
- Read
- Write
The OPEN verb in COBOL allows you to specify the Organization mode for a file. This determines how the records in the file are arranged, such as Sequential or Indexed.