Description: An open cursor in a database management system is a database object that allows retrieving rows from a result set. This mechanism is fundamental for data manipulation, as it enables developers to interact with the results of an SQL query efficiently. By opening a cursor, a context is established for executing a query, allowing navigation through the returned records. Cursors can be used to perform read, update, or delete operations on data, making them versatile tools in database management. Additionally, cursors can be configured to operate in different modes, such as read-only or update mode, depending on the application’s needs. The ability to iterate over the results of a query using an open cursor facilitates the implementation of complex business logic and the manipulation of large volumes of data in a controlled and efficient manner.
