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。

The 'New SQL Requirement' function of Feisuan JavaAI, based on powerful natural language processing and SQL syntax parsing ...

One of the most common problems when running SQL Servers is slow queries. The help desk or database team usually hears that described as the application is slow or ...

One of the most common problems when running SQL Servers is slow queries. The help desk or database team usually hears that described as the application is slow or ...

SQL Server 2016 lets you treat JSON objects like rows in a table, allowing you to use data from AJAX queries in joins, updates and any other SQL statement you can think of. SQL Server 2016 provides ...

SQL is neither the fastest nor the most elegant way to talk to databases, but it is the best way we have. Here’s why Today, Structured Query Language is the standard means of manipulating and querying ...

Why is the language developers and DBAs use to organize data such a mess? Here are 13 reasons we wish we could quit SQL, even ...

A free tool to reduce coding for developers who like to surface T-SQL database recordsets in a simple collection of customized POCO objects. Every so often, I find myself wishing that I had a utility ...

Dynamic SQL lets you create a query string based off of user input. SQL Server allows you to create dynamic SQL statements. The statements use a SQL string varchar data type, then you execute the ...

Multiple Detail Records - 4 in this case. (linked to the header record) Multiple Inventory Records - again, 4 - (each detail record points to one specific inventory record, but the inventory may be ...