In a high-concurrency database environment, row lock is a fine-grained lock mechanism provided by MySQL. It allows multiple transactions to operate on different records of the same table at the same time, greatly improving the concurrency performance of the database. However, in some special cases, row lock may degenerate into table lock, causing the entire table to be locked, thus significantly reducing concurrency performance. This article will deeply analyze the implementation principle of row lock in MySQL, the triggering conditions and reasons for degenerating into table lock, and provide...