Course Intermediate 5433
Course Introduction:Flutter is Google's mobile UI framework that can quickly build high-quality native user interfaces on iOS and Android. Flutter can work with existing code. Flutter is being used by more and more developers and organizations around the world, and Flutter is completely free and open source. We will unveil his lovely and magical veil here.
Course Elementary 12861
Course Introduction:From the perspective of beginner and intermediate readers, through easy-to-understand language and colorful examples, it introduces in detail the knowledge required to use Android. Using the Android Studio development tool, it explains from an Android application, from the shallower to the deeper, so that students can gradually Master the essence of Android.
Course Elementary 7748
Course Introduction:01-NodeJS (introduction, installation, common modules, message board) 02-NodeJS (NPM usage, template engine, Express framework) 03-NodeJS (Express framework student project, login registration, middleware, session technology, error handling) 04-NodeJS (ES6, web crawler, MySQL, koa2 framework student project)
Course Intermediate 19763
Course Introduction:Based on the two principles of streamlined core and unified usage, ThinkPHP6 has further optimized and improved the underlying architecture based on 5.1, and made it more standardized. Due to the introduction of some new features, the ThinkPHP6 operating environment requires PHP7.1+ and does not support seamless upgrades to 5.1.
Error when importing database file #1215 - Cannot add foreign key constraint
2020-12-03 06:59:24 0 1 1519
Give away mystery eggs! [6.16 Free Public Welfare Live Class Activity Post]
2021-06-16 11:21:40 4 132 12416
Course Introduction:Navicat error 1215 solution: 1. Set the data type of the field corresponding to the foreign key to be consistent. 2. When setting the foreign key, set "When deleting" to "SET NULL". 3. When designing tables, the storage engines of the two tables must also be set to be consistent.
2019-08-07 comment 0 5466
Course Introduction:How to deal with MySQL connection error 1215? MySQL is a very commonly used relational database management system and is widely used in various types of websites and applications. However, while using MySQL, you sometimes encounter different errors, one of which is the common connection error 1215. This error is usually caused by foreign key constraints, and the solution to this problem is relatively simple. First, let's understand what foreign key constraints are. In a relational database, a foreign key is a field in a table
2023-06-29 comment 0 1626
Course Introduction:1. Introduce dependency org.springframework.bootspring-boot-starter-websocketorg.projectlomboklombokcom.alibabafastjson1.2.32, WebSocketConfig turns on WebSocketpackagecom.shucha.deveiface.web.config;/***@authortqf*@Description*@Version1.0*@ since2022-04-1215:35*/importorg.spri
2023-05-12 comment 0 1431
Course Introduction:A question from the Awakening of Nations event: Where was the Magna Carta signed by King John of England in 1215? Many friends really want to know the answer to this question. The editor will introduce it to you below. The Awakening of Nations Unparalleled Answer Question: Where was the Magna Carta signed by King John of England in 1215? Answer: Runnymede Awakening of All Kingdoms Unparalleled Event Rewards 1. Players can get resurrection scrolls, etc. during the initial trial. 2. When the player reaches the final trial, the reward for the final trial is 864 diamonds. 3. Completing the National Warriors can also obtain resources, acceleration, etc., and you can share the grand prize of 1,500,000 diamonds. Preliminary trial of the Awakening of Kingdoms Peerless Unparalleled event time: You can participate from 0:00 to 23:00 from Monday to Friday, a total of 1
2024-08-12 comment 0 730