- A A process of connecting to a remote database server
- B A unit of work that consists of multiple database operations
- C A mechanism for generating unique identifiers for new records
- D A method for querying and retrieving data from a database
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Answer:
B
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A transaction in a relational database is a unit of work that consists of multiple database operations, such as inserting, updating, or deleting records. It ensures that all the operations are executed as a single, atomic unit, maintaining data consistency and allowing for rollback in case of errors.
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