How to use MySQL Entity Framework component to process MYSQL PaaS DB

MySQL Database on Azure is a MySQL cloud database service launched on Azure platform. By fully compatible with MySQL protocol, it provides users with a fully managed database service with stable performance, rapid deployment, high availability and high security. Customers can use common platforms and technologies to support MySQL for developmen ...

Posted by San_John on Fri, 08 Feb 2019 22:21:17 -0800

Database syntax error: ERROR 1064 (42000): for the right syntax to use near'XXXX'

Life will always encounter setbacks, big and small, people caught by surprise, laughing and crying. For example, I recently encountered a small problem: I would like to modify the permissions for the user with id=1: update user set right=5 where id=1; But. MySQL has been grammatical error reporting: ERROR 1064 (42000): You have an error ...

Posted by flOid on Fri, 08 Feb 2019 08:33:17 -0800

Spring framework query query query query data operation for dao layer jdbcTemplate operation crud - query table, return the result as a list set of objects

Complete with JdbcTemplate method, query database tables, and return all data of user table sw_user to List < User > set. In the JdbcTemplateDemo class, add queryAllObject() to the method that queries return all sets of objects. Data source DriverManager Data Source remains unchanged The method of jdbcTemplate has changed, using query(sql ...

Posted by jeicrash on Fri, 08 Feb 2019 08:15:19 -0800

sql optimization of MySql with order by and limit

sql optimization of MySql with order by and limit (root@localhost:mysql.sock)[mm]explain select ID,ModeType,BusinessID,BusinessList,FlowStatus,CreateTime,Name,LastStepStatus FROM Rec_FS where FlowStatus <>2 and LastStepStatus = 1 ORDER BY CreateTime ASC LIMIT 0,100; +----+-------------+-----------------+------+---------------------- ...

Posted by jayshields on Thu, 07 Feb 2019 19:06:16 -0800

Configuration of c3p0 Connection Pool in Spring and the Use of JdbcTemplate Complete Add ing () Method to Database by Injecting Various Required Objects into XML Configuration File

Configuration of XML methods through configuration files You can use a very concise Service class The UserService class code is as follows: package com.swift; public class UserService { private UserDao userDao; public void setUserDao(UserDao userDao) { this.userDao = userDao; } public boolean add() { return us ...

Posted by netman182 on Thu, 07 Feb 2019 14:51:16 -0800

The Spring framework delete s database operations for the jdbcTemplate operation crud of the dao layer and downloads Spring-related Jar packages

First, find the jar packages needed for IoC, aop and JdbcTemplate functions in the Spring framework. There are currently 13 Jar packages 1. Four core JAR packages in Spring Compression Pack to realize IoC control inversion and generate objects according to xml configuration files or annotations beans, context, core and expression Download addre ...

Posted by genecide on Thu, 07 Feb 2019 08:30:17 -0800

SQLSTATE[HY000]: General error: 1205 Lock wait timeout exceeded solution

SQLSTATE[HY000]: General error: 1205 Lock wait timeout exceeded; try restarting transaction MySQL sometimes reports this delay exception.I. Problem Analysis After searching for related problems on the Internet, the analysis ideas to solve these problems are summarized. Firstly, the appearance is that the execution time of SQL is too long, wh ...

Posted by jbreits on Thu, 07 Feb 2019 01:54:16 -0800

Spring framework delete data operations for jdbcTemplate operation crud in dao layer

Using jdbcTemplate The principle is to load the driver Class.forName("com.mysql.jdbc.Driver"). Connect to the database Connection conn = DriverManager. getConnection ("jdbc: mysql://localhost: 3306/sw_database? User = root & password = root"); Complete DriverManagerDataSource dataSource=new DriverManagerDataSource() with ...

Posted by JMair on Thu, 07 Feb 2019 01:45:16 -0800

Building Web Development Environment with IntelliJ IDEA and Maven Management (Take Spring MVC as an example) (2)

Preface: Building Web Development Environment with IntelliJ IDEA and Maven Management (Take Spring MVC as an example) (1) How to build the web infrastructure environment has been introduced. Here we mainly demonstrate how to build the spring environment, and then combine it into a completed spring MVC Web project. Build Spring environment. 1. W ...

Posted by hubfub on Wed, 06 Feb 2019 23:18:17 -0800

supervisor boot script + redis+MySQL+tomcat+nginx process automatic restart configuration

supervisor boot-up automatic restart script #! /bin/sh PATH=/sbin:/bin:/usr/sbin:/usr/bin PROGNAME=supervisord DAEMON=/usr/bin/$PROGNAME CONFIG=/etc/$PROGNAME.conf PIDFILE=/tmp/$PROGNAME.pid DESC="supervisord daemon" SCRIPTNAME=/etc/init.d/$PROGNAME # Gracefully exit if the package has been removed. test -x $DAEMON || exit 0 start() { ...

Posted by clairian on Wed, 06 Feb 2019 20:27:17 -0800