search_数据库系统的核心-php.cn

Whole station
Course
Article
Q&A
Download

HTML5 tutorial from entry to proficiency

Course Elementary 54145

Course Introduction："HTML5 From Beginner to Mastery Tutorial" introduces in detail that HTML5 has added a lot of new content based on HTML, with more functions and more dazzling effects.

Javascript basic tutorial

Course Elementary 26944

Course Introduction："Javascript Basics Tutorial" will take you to quickly learn the basic knowledge of javascript and explain it through examples, so that you can better understand the javascript scripting language.

HTML basic tutorial

Course Elementary 30812

Course Introduction：This tutorial will start from the basics and does not require you to have any programming knowledge. The "HTML Tutorial" contains our knowledge of HTML5, truly achieving a comprehensive learning of HTML.

HTML5 quick introduction self-study tutorial

Course Elementary 24085

Course Introduction："HTML5 Quick Self-Study Tutorial" is suitable for zero-based entry learning of HTML5. HTML5 is the fifth version of HTML development. With the support of browser technology, it has also begun to be widely used. H5 will become the new standard for WEB development. This course will provide readers with Explain all the core features of HTML5.

javascript elementary tutorial

Course Elementary 90684

Course Introduction："JavaScript Elementary Tutorial" is an introductory course to JavaScript, designed to let everyone know and understand the common knowledge of JavaScript.

More courses

Database design - MySQL database integration of two systems

1. There are currently systems A and B, and B is the upgraded system of A; 2. The structure of most database tables in the two versions of the system mysql database is the same, and the data of A can be directly integrated into another system B; but there is still Some tables have different structures, or are split into multiple tables in B; 3. Prepare to use them in system B...

2017-05-18 10:54:00

java - In order to avoid the complex one-to-many-to-many relationship in the database, I designed the database without foreign keys. Is this possible?

In order to avoid the complex one-to-many-to-many relationship in the database, I designed the database so that the fields in the table have no foreign keys, and the relationships are manually related using setters and getters. However, after writing the program, the function can be implemented, but I found that It's painful to write a lot of getters and setters, and...

2017-05-17 10:08:09

java - Spring operation database displays garbled Chinese characters?

Operating system: ubuntuIDE:idea Database:Mysql When I use php to operate the database, there is no problem with Chinese display, and Chinese can be displayed normally: But when I am learning spring, when I operate the database, question marks will appear in Chinese, and it cannot be displayed normally. I am in spring Database configuration written in {...

2017-05-16 13:29:37

Validation rules for laravel form form validation

In laravel, when verifying whether fields are repeated, the following {code...} is verified. unique:users queries whether there are duplicates in the users table; but this is an operation on a single database; and what the current system needs to verify is not what I want. Database {code...} In database configuration...

2017-05-16 16:55:44

Performance Optimization - How to optimize apache under windows, improve concurrency, and withstand more access? (Production Environment)

Due to historical reasons, our system is deployed on windows server and apache is used as a web service. and cannot be replaced. Current situation: Another department pushes data to our system through API, we receive the data and then store it in the database. The problem encountered is: the amount of data pushed is large and there are many requests, causing apache...

2017-05-16 17:04:03

MoreQ&A

blobudflib.dll - What is blobudflib.dll?

Course Introduction：What is blobudflib.dll doing on my computer? InterBase Blob UDF Library This process is still being reviewed. Non-system processes like blobudflib.dll originate from software you installed on your system. Since most applications store data on y

2024-09-01 comment 0 243

btnexgenipl32.dll - What is btnexgenipl32.dll?

Course Introduction：What is btnexgenipl32.dll doing on my computer? Image Processing Library This process is still being reviewed. Non-system processes like btnexgenipl32.dll originate from software you installed on your system. Since most applications store data

2024-09-05 comment 0 936

bw5mount.dll - What is bw5mount.dll?

Course Introduction：What is bw5mount.dll doing on my computer? Blindwrite 5 image access library This process is still being reviewed. Non-system processes like bw5mount.dll originate from software you installed on your system. Since most applications store data o

2024-09-06 comment 0 659

bessel.dll - What is bessel.dll?

Course Introduction：What is bessel.dll doing on my computer? bessel.dll is a Function Library This process is still being reviewed. Non-system processes like bessel.dll originate from software you installed on your system. Since most applications store data on you

2024-08-30 comment 0 376

a0002997.dll - What is a0002997.dll?

Course Introduction：What is a0002997.dll doing on my computer? Microsoft FrontPage Text Library This process is still being reviewed. Non-system processes like a0002997.dll originate from software you installed on your system. Since most applications store data on

2024-09-06 comment 0 1019

MoreTechnical Articles