Transaktsiyalarning

Transaktsiyalar are units of work that are performed on a database. They are designed to be atomic, consistent, isolated, and durable, often referred to by the acronym ACID. Atomic means that a transaction is treated as a single unit; either all of its operations are completed successfully, or none of them are. Consistent ensures that a transaction brings the database from one valid state to another. Isolated means that concurrent transactions do not interfere with each other, and durable implies that once a transaction has been committed, it will remain so even in the event of system failures.

In database systems, transactions are crucial for maintaining data integrity and reliability. They are used to group a sequence of operations, such as reading, writing, or updating data, into a logical unit. If any part of a transaction fails, the entire transaction is rolled back, meaning all changes made by that transaction are undone, returning the database to its state before the transaction began. This rollback mechanism is essential for preventing partial updates and data corruption.

The concept of transactions is fundamental to many types of software applications, including financial systems, e-commerce platforms, and inventory management. By ensuring that operations are performed reliably and in a predictable manner, transactions allow for complex data manipulations to be managed safely. Database management systems provide mechanisms to define, manage, and monitor transactions, ensuring that the ACID properties are upheld under various operating conditions.