A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties: The left subtree of a node contains only nodes with keys less than the node's key. The right subtree of a node contains only nodes with keys great
本文实例讲述了MySQL单表查询操作。分享给大家供大家参考，具体如下：
语法
一、单表查询的语法
SELECT 字段1,字段2… FROM 表名
WHERE 条件
GROUP BY field
HAVING 筛选
ORDER BY field
LIMIT 限制条数
二、关键字的执行优先级（重点）
重点中的重点
