Home Database Mysql Tutorial 10 recommended articles about roc

10 recommended articles about roc

Jun 13, 2017 pm 02:46 PM

one. Preface PROCEDURE ANALYSE(), which can be used as an auxiliary reference to analyze statements when optimizing the table structure. Using this statement, MySQL helps you analyze your fields and their actual data, and will give you some useful suggestions. [These suggestions will only become useful if there is actual data in the table, because making some big decisions requires data as a basis. ] For example, if you create an INT field as your primary key, but there is not much data, then PROCEDURE ANALYSE() will recommend that you change the type of this field to MEDIUMINT. Or you're using a VARCHAR field, and since there's not much data, you might get a message asking you to change it to ENUM suggestions. These suggestions are all possible because there is not enough data, so the decision-making is not accurate enough. When we design a table, we sometimes always think about what type to use for a certain field. A novice-level PHPer will have considerable experience and can type it out directly. In fact, we can also use procedure analyze(); analysis during later tuning.

1. About Analysis Recommended 10 articles

10 recommended articles about roc

## Introduction: 1. Preface PROCEDURE ANALYSE(), which can be used as an auxiliary reference to analyze statements when optimizing the table structure. Using this statement, MySQL helps you analyze your fields and their actual data, and will give you some useful suggestions. [These suggestions will only become useful if there is actual data in the table, because making some big decisions requires data as a basis. 】 For example, if you create an INT field as your primary key, but there is not much data, then PROCEDURE ANALYSE() will recommend that you put this...

2. Example introduction to analysis statements

10 recommended articles about roc

Introduction: 1. Preface PROCEDURE ANALYSE(), which can be used as an auxiliary reference to analyze statements when optimizing the table structure. Using this statement, MySQL helps you analyze your fields and their actual data, and will give you some useful suggestions. [These suggestions will only become useful if there is actual data in the table, because making some big decisions requires data as a basis. 】 For example, if you create an INT field as your primary key, but there is not much data, then PROCEDURE ANALYSE() will suggest that you put this...

3. Recommended articles about Procedure_Analyse

10 recommended articles about roc

##Introduction: 1. Preface PROCEDURE ANALYSE(), which can be used as an auxiliary reference to analyze statements when optimizing the table structure. Using this statement, MySQL helps you analyze your fields and their actual data, and will give you some useful suggestions. [These suggestions will only become useful if there is actual data in the table, because making some big decisions requires data as a basis. 】 For example, if you create an INT field as your primary key, but there is not much data, then PROCEDURE ANALYSE() will suggest that you put this...

4.

sizeof recommends 10 articles

10 recommended articles about roc#Introduction: 1. Introduction    ;     In the previous article, we created a window from scratch. One of the most important steps is to register the window class, as shown in the following code: //Register window class BOOL Register(LPSTR lpClassName, WNDPROC wndProc){    WNDCLASSEX ...

5.

A summary of examples of php dynamic pages

Introduction: (php mascot-elephant) What is php? PHP (foreign name: PHP: Hypertext Preprocessor, Chinese name: "Hypertext Preprocessor") is a general open source scripting language. The syntax absorbs the characteristics of C language, Java and Perl, which is easy to learn and widely used. It is mainly suitable for the field of Web development. PHP's unique syntax mixes C, Java, Perl, and PHP's own syntax. It can execute dynamic web pages faster than CGI or Perl. Dynamic pages and other programming made with PHP...

6. Summary of what you need to pay attention to about Nginx

10 recommended articles about roc

Introduction: nginx parameter tuning worker_processes 3; //The number of cpu cores is -1, the effect is better when used #worker_processes 4;#worker_cpu_affinity 0001 0010 0100 1000 ;#error_log  logs/error.log;#error_log  logs/error.log  notice;#error_log...

7. What is about php 10 articles recommended

10 recommended articles about roc

##Introduction: (php mascot-elephant) What is php? PHP (foreign name: PHP: Hypertext Preprocessor, Chinese name: "Hypertext Preprocessor") is a general open source scripting language. The syntax absorbs the characteristics of C language, Java and Perl, which is easy to learn and widely used. It is mainly suitable for the field of Web development. PHP's unique syntax mixes C, Java, Perl, and PHP's own syntax. It can execute dynamic web pages faster than CGI or Perl. Dynamic pages made with PHP and other programming...

8. Summary of courses on AJAX

10 recommended articles about roc

##Introduction: Commonly used abbreviations   Ajax: Asynchronous Javascript   XML (Asynchronous JavaScript   Unit (Central Processing Unit)    CSS: Cascading Stylesh...

9.

Detailed introduction to abbreviations

10 recommended articles about roc

Introduction: Commonly used abbreviations  Ajax: Asynchronous JavaScript XML (Asynchronous JavaScript XML) ;  CPU: Central Processing Unit    CSS: Cascading Stylesh...

10.

About Father and Son Recommended articles about process

10 recommended articles about roc

Introduction: multiprocessing python multi-process module, therefore, Processing is also the darling of multi-process . But the issues discussed today seem to attract our attention and go directly to the code: from multiprocessing import process, Locker_file = error1.log e. ..

【Related Q&A recommendations】:

process - linux Does each process belong to a certain tty

node.js - npm install -g bower error process out of memory..

multiprocessing - python multi-process crawler error

mysql - pt-query-digest When using the since parameter, it always prompts No events processed

If Python has concurrent, do mutiprocessing and threading still have meaning?

The above is the detailed content of 10 recommended articles about roc. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Nordhold: Fusion System, Explained
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1670
14
PHP Tutorial
1274
29
C# Tutorial
1256
24
MySQL's Role: Databases in Web Applications MySQL's Role: Databases in Web Applications Apr 17, 2025 am 12:23 AM

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

Explain the role of InnoDB redo logs and undo logs. Explain the role of InnoDB redo logs and undo logs. Apr 15, 2025 am 12:16 AM

InnoDB uses redologs and undologs to ensure data consistency and reliability. 1.redologs record data page modification to ensure crash recovery and transaction persistence. 2.undologs records the original data value and supports transaction rollback and MVCC.

MySQL vs. Other Programming Languages: A Comparison MySQL vs. Other Programming Languages: A Comparison Apr 19, 2025 am 12:22 AM

Compared with other programming languages, MySQL is mainly used to store and manage data, while other languages ​​such as Python, Java, and C are used for logical processing and application development. MySQL is known for its high performance, scalability and cross-platform support, suitable for data management needs, while other languages ​​have advantages in their respective fields such as data analytics, enterprise applications, and system programming.

How does MySQL index cardinality affect query performance? How does MySQL index cardinality affect query performance? Apr 14, 2025 am 12:18 AM

MySQL index cardinality has a significant impact on query performance: 1. High cardinality index can more effectively narrow the data range and improve query efficiency; 2. Low cardinality index may lead to full table scanning and reduce query performance; 3. In joint index, high cardinality sequences should be placed in front to optimize query.

MySQL for Beginners: Getting Started with Database Management MySQL for Beginners: Getting Started with Database Management Apr 18, 2025 am 12:10 AM

The basic operations of MySQL include creating databases, tables, and using SQL to perform CRUD operations on data. 1. Create a database: CREATEDATABASEmy_first_db; 2. Create a table: CREATETABLEbooks(idINTAUTO_INCREMENTPRIMARYKEY, titleVARCHAR(100)NOTNULL, authorVARCHAR(100)NOTNULL, published_yearINT); 3. Insert data: INSERTINTObooks(title, author, published_year)VA

MySQL vs. Other Databases: Comparing the Options MySQL vs. Other Databases: Comparing the Options Apr 15, 2025 am 12:08 AM

MySQL is suitable for web applications and content management systems and is popular for its open source, high performance and ease of use. 1) Compared with PostgreSQL, MySQL performs better in simple queries and high concurrent read operations. 2) Compared with Oracle, MySQL is more popular among small and medium-sized enterprises because of its open source and low cost. 3) Compared with Microsoft SQL Server, MySQL is more suitable for cross-platform applications. 4) Unlike MongoDB, MySQL is more suitable for structured data and transaction processing.

Explain the InnoDB Buffer Pool and its importance for performance. Explain the InnoDB Buffer Pool and its importance for performance. Apr 19, 2025 am 12:24 AM

InnoDBBufferPool reduces disk I/O by caching data and indexing pages, improving database performance. Its working principle includes: 1. Data reading: Read data from BufferPool; 2. Data writing: After modifying the data, write to BufferPool and refresh it to disk regularly; 3. Cache management: Use the LRU algorithm to manage cache pages; 4. Reading mechanism: Load adjacent data pages in advance. By sizing the BufferPool and using multiple instances, database performance can be optimized.

MySQL: Structured Data and Relational Databases MySQL: Structured Data and Relational Databases Apr 18, 2025 am 12:22 AM

MySQL efficiently manages structured data through table structure and SQL query, and implements inter-table relationships through foreign keys. 1. Define the data format and type when creating a table. 2. Use foreign keys to establish relationships between tables. 3. Improve performance through indexing and query optimization. 4. Regularly backup and monitor databases to ensure data security and performance optimization.

See all articles