What is the significance of using the CURRENT-DATE special register in COBOL?
- It is a placeholder for future date and time calculations
- It is used to declare variables for date and time storage
- It retrieves the system date and time during program execution
- It stores the current date and time when the program is compiled
The CURRENT-DATE special register in COBOL is used to retrieve the current system date and time during program execution. It provides a standardized way to access real-time information for various date-related operations.
To handle file-related exceptions, you can use the ______ statement to specify alternative actions.
- EXCEPTION-FILE
- FILE CONTROL
- FILE EXCEPTION
- FILE HANDLING
The FILE EXCEPTION statement in COBOL is used to handle file-related exceptions. It allows the programmer to specify alternative actions to be taken when exceptions related to file operations occur.
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 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 an embedded SQL statement used for in the context of database connectivity?
- Connecting COBOL programs to multiple databases
- Creating backup copies of COBOL programs
- Executing SQL statements within COBOL programs
- Generating reports from COBOL programs
An embedded SQL statement in COBOL allows the execution of SQL queries, updates, and other database operations directly within COBOL programs. This integration facilitates database connectivity and enables COBOL programs to interact with database systems seamlessly.
When using the REDEFINES clause in COBOL, you can create a different view of the same ________ item.
- Group
- Level
- Memory
- Occurs
The REDEFINES clause in COBOL allows you to create a different view of the same memory space occupied by a group item. It is used for reinterpreting the storage allocated to a data item, providing flexibility in data representation.
When dealing with VSAM and ISAM files, it's important to implement proper ________ strategies to avoid data inconsistencies.
- Indexing
- Locking
- Merging
- Sorting
Implementing proper Locking strategies is crucial when dealing with VSAM and ISAM files to avoid data inconsistencies caused by concurrent access from multiple users. Locking ensures that only one user can modify a record at a time, preventing conflicts and maintaining data integrity.
The OUTPUT PROCEDURE in a COBOL SORT statement is used to process records _____ the sorting process.
- After
- After and Before
- Before
- During
The OUTPUT PROCEDURE in a COBOL SORT statement is used to process records during the sorting process. It allows for custom processing of records as they are being sorted, enabling more flexibility in handling data.
You are tasked with sorting a large dataset of customer records based on their account balances in ascending order. Which COBOL operation would be most suitable for this task?
- MOVE statement
- READ statement
- SEARCH verb
- SORT verb
The SORT verb in COBOL is specifically designed for sorting data. It allows you to arrange records in ascending or descending order based on specified key fields, making it the most suitable choice for sorting customer records based on account balances.
You are designing a COBOL program to calculate the factorial of a number using a recursive subprogram. Which type of recursion is involved in this scenario?
- Direct Recursion
- Indirect Recursion
- Mutual Recursion
- Tail Recursion
In this scenario, Mutual Recursion is involved when two or more subprograms call each other to calculate the factorial. It creates a cycle of calls among the subprograms.
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.
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.