What are the different concurrency control mechanisms used by MySQL, and how do they interact with transactions

Nov 13, 2024 ... However, Acquia continued to keep the default MySQL transaction level to REPEATABLE-READ for compliance reasons. If you experience deadlocks ... Sep 3, 2023 ... Does MySQL's transaction id use different scenario which no need to handle the wraparound~? Q2: When PostgreSQL row data is modified, it's ... Aug 28, 2022 ... With vast improvements to the Performance Schema, MySQL transaction report is possible but there are no tools to make it easy, as far as I know. By default, MySqlConnector requires MySqlCommand.Transaction to be set to the connection's active transaction in order for the command to be executed ... Oct 10, 2018 ... Amazon RDS for MySQL now supports global transaction identifiers (GTIDs) ... Amazon RDS for MySQL now supports global transaction identifiers ( ... May 28, 2022 ... It seems that the transaction locks the tables, and although the process above takes only about 3-6 seconds, it causes about once a day Lock wait timeout ... Apr 11, 2025 ... The most common and efficient way is to use the slow query logs. You need to determine first if your slow query logs are enabled. Jan 11, 2014 ... 1 Answer 1 · 2. Cool, rollback segment. · 2. The rollback segment is inside the tablespace on disk. · 2. So what if I change these billion rows ... Oracle AVDF's Transaction Log collector for MySQL collects transaction log records from generated XML files. These logs are forwarded to the Audit Vault Server ... Usage. The `COMMIT` statement is typically used after a series of `INSERT`, `UPDATE`, or `DELETE` operations to ensure changes are saved to the database. It is ...