What must be provided in DB Once mode for marking a record as exported?

What must be provided in DB Once mode for marking a record as exported?

• A. An INSERT query
• B. An UPDATE query
• C. A DELETE query
• D. A SELECT query

Answer: (B)

In the context of marking a record as exported in DB Once mode, the correct action is to use an UPDATE query. This is because when a record is classified as exported, it typically requires a modification to its status in the database rather than creating, removing, or merely retrieving data. An update operation allows the system to change the existing record's properties, such as a flag or status that indicates it has been processed or exported. By doing so, it facilitates tracking of records that have already been handled, thereby preventing duplicate processing and ensuring data integrity. In contrast, an INSERT query is used to add new records, while a DELETE query would remove existing records from the database, which does not align with the goal of marking a record as exported. A SELECT query is used solely for retrieving data without making any changes. Thus, the nature of the action required in this scenario is best fulfilled by an UPDATE query to effectively reflect the change in the status of the record.

In the context of marking a record as exported in DB Once mode, the correct action is to use an UPDATE query. This is because when a record is classified as exported, it typically requires a modification to its status in the database rather than creating, removing, or merely retrieving data.

An update operation allows the system to change the existing record's properties, such as a flag or status that indicates it has been processed or exported. By doing so, it facilitates tracking of records that have already been handled, thereby preventing duplicate processing and ensuring data integrity.

In contrast, an INSERT query is used to add new records, while a DELETE query would remove existing records from the database, which does not align with the goal of marking a record as exported. A SELECT query is used solely for retrieving data without making any changes. Thus, the nature of the action required in this scenario is best fulfilled by an UPDATE query to effectively reflect the change in the status of the record.