adatbázismveletet

Adatbázisművelet refers to any action performed on a database. These operations are fundamental to the management and utilization of data stored within a database system. The primary categories of database operations include creating, reading, updating, and deleting data, often collectively known by the acronym CRUD. Creating an operation involves adding new records or entries to a database. Reading operations retrieve existing data from the database, allowing users or applications to access information. Updating operations modify existing data, rectifying errors or reflecting changes in real-world information. Deleting operations remove data from the database, which can be permanent or temporary depending on the system's configuration.

Beyond CRUD, other significant database operations include querying, which is a specific type of read operation focused on retrieving data based on defined criteria. Transaction management is another crucial aspect, ensuring that a series of database operations are executed as a single, atomic unit. This means that either all operations within the transaction succeed, or none of them do, maintaining data integrity. Database administration tasks also involve various operations, such as backups, restores, performance tuning, and security management. Each of these operations plays a vital role in ensuring the availability, consistency, and security of the data. The efficiency and correctness of these database operations are paramount for the performance of applications and the reliability of information systems.