Description: Row-level locking is a concurrency control mechanism used in database management systems that allows multiple transactions to simultaneously access different rows of a table without interfering with each other. This approach is fundamental for improving the performance and efficiency of SQL queries, as it minimizes wait times and maximizes data availability. Unlike table-level locking, which restricts access to the entire table, row-level locking allows transactions to operate on a more granular set of data. This is particularly useful in high-concurrency environments where multiple users may be trying to read and write data at the same time. Key features of row-level locking include the ability to allow simultaneous reads and writes, reduced conflicts between transactions, and improved scalability of applications. In summary, row-level locking is an essential technique in database optimization and efficient database management, ensuring data integrity while maximizing system performance.
