公子专栏

自己在本地测试mysql时，需要用到select into ，简单测试了一下mysql> select * into nod from NODES;ERROR 1327 (42000): Undeclared variable: nod自己网上查了一下，发现在mysql中不支持 ：SELECT * INTO B FROM A但是支持CREAT

自己在本地测试MySQL时，需要用到select into ，简单测试了一下mysql> select * into nod from NODES;ERROR 1327 (42000): Undeclared variable: nod自己网上查了一下，发现在mysql中不支持 ：SELECT * INTO B FROM A但是支持CREATE TABLE B SELECT * FROM A重新测

Scala JDBC 查询和更新MySQL完整代码如下package com.biimport java.sql.{Connection, DriverManager, Timestamp}import java.util.Calendar/** * Created by gongzi on 2017/6/28. */object MySqlConn { // for test en

MySQL-时间+日期函数图

LeetCode-262.Trips and Users262.Trips and UsersSQL SchemaTable TripsTable UsersRequiementSolution262.Trips and Users原题链接：https://leetcode.com/problems/trips-and-users/SQL SchemaCreate table If Not...

601.Human_Traffic_of_Stadiumhttps://leetcode.com/problems/human-traffic-of-stadium/Solution-for-3_or_more consecutive_visit_dateCreate table temp_visit_date select b.id, b.visit_date, b.people,...