全表扫描（Full Table Scan）是数据库查询中常见的性能杀手，尤其在数据量巨大的生产环境中，一条效率低下的 SQL 就足以引发连锁性的系统故障。为从根本上防范此类风险， 百度 智能云数据库在 MySQL 内核层面设计并实现了一套全表扫描动态管控机制，实现对低效 SQL 的实时检测、灵活拦截与预警记录，将运维控制权真正交到开发者以及 DBA 手中。

HOUSTON--(BUSINESS WIRE)--IDERA (an Idera, Inc. company), a provider of powerful database productivity tools, today announced the latest release of SQL Diagnostic Manager for MySQL v8.9. This release ...

Ahana Cloud for Presto turns a data lake on Amazon S3 into what is effectively a data warehouse, without moving any data. SQL queries run quickly even when joining multiple heterogeneous data sources.